UTCC Confirmed: ND Miata “EcoBoosted” to 500 horsepower

Photograph courtesy Dayton de la Houssaye

How to get 500 horsepower out of an ND Miata? For Dayton de la Houssaye, the answer was to swap in a 2.3-liter Ford EcoBoost engine.

The Miata, which Dayton believes is the “world's first 2.3 EcoBoost-swapped ND,” has been upgraded and modified with several one-off pieces, in particular a titanium exhaust as well as 3D-printed and carbon fiber ducting.

Dayton also adds that he’s “pretty dang confident it’s the world's fastest ND Miata,” backing up the claim by pointing out that the car has a few track records to its name.

Curious to see how it stacks up against the competition in our search for the Ultimate Track Car? So is Dayton. Catch him and his EcoBoost-powered Miata when our Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports takes to Eagles Canyon Raceway on October 22.

And if you think you have a faster ND Miata, or a faster anything for that matter, enter today. What’s eligible to compete? Virtually anything, so long as both car and driver pass a safety inspection.

The ultra-fast track machines don’t end there, however, as we’ll be sharing the weekend with the Tire Rack SCCA Time Attack Challenge.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports in association with Wilwood, Vitour Tire, CRC Industries, Red Line Oil and Racetech, with trophies from BimmerWorld, Nine Lives Racing, Falken Tire, Vbox Motorsport and American Muscle.

UTCC Confirmed: Electrifying performance? This 1000-horsepower racer

Photograph by Chris Tropea

Red with anger? Green with envy? Neither–this racer just keeps going plaid all over the country.

“This car has been around the United States several times now from coast to almost coast,” Andrew DeKoning says of his Tesla Model S Plaid. “We have put a ton of work into making the car turn with our partners at Mountain Pass Performance.”

That work, of course, includes custom three-way adjustable coil-overs, uprated brakes and some unique electronic wizardry:

“Mountain Pass has also worked magic with a Motec inside the car so that we can pull data, temperatures, etc,” DeKoning explains, adding that the system even offers push to pass.

But is it enough to “push past” the competition? We’ll find out on October 22, when the Model S takes to the sweeping turns of Eagle’s Canyon Raceway for the top prize of our Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports.

Our annual search for the fastest track machine on four wheels welcomes virtually anything to compete, so long as both car and driver pass a safety inspection. If that sounds like something you (and your car) can do, sign up today.

And we’ll be sharing the weekend with even more of the fastest cars in the country, the Tire Rack SCCA Time Attack Challenge, because the more the merrier, right?

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports in association with Wilwood, Vitour Tire, CRC Industries, Red Line Oil and Racetech, with trophies from BimmerWorld, Nine Lives Racing, Falken Tire, Vbox Motorsport and American Muscle.

UTCC Confirmed: C8 ZR1, the 1000-horsepower Corvette

Photograph courtesy Dallas Reed

1000 horsepower, a 0-60 time of less than 3 seconds, a top speed north of 200 mph–yeah, the C8 Corvette ZR1 is certainly a quick piece of kit.

And, while not everyone will get the chance to pilot one on track, we can offer the next best thing: the chance to compete against one.

Enter Dallas Reed, whose C8 Corvette ZR1 is among the latest entrants into our search for the fastest track machine on four wheels, the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports.

As Reed explains, the ZR1 combines “hypercar performance without hypercar compromises” with an ability “to be driven to an event, run hard through every session to the checkered and driven home.”

Likewise, the modifications to the ZR1 are fairly tame, primarily consisting of Öhlins TTX shocks and a bespoke set of wheels wrapped in Vitour P1 P-01R tires, Reed tells us.

Think (or know) you have a track car that’s faster than the latest Corvette ZR1? Enter it today for a chance to prove it on the big stage.

Our Tire Rack Ultimate Track Car Challenge takes place at Eagles Canyon Raceway on October 22 alongside the Tire Rack SCCA Time Attack Challenge.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports in association with Wilwood, Vitour Tire, CRC Industries, Red Line Oil and Racetech, with trophies from BimmerWorld, Nine Lives Racing, Falken Tire, Vbox Motorsport and American Muscle.

UTCC Confirmed: Camaro ZL1 1LE pushing out more than 800 horsepower

Photograph by Nick Plocienik

One of the fastest Camaros money can buy? The ZL1 1LE. Yet its 650-horsepower, supercharged LT4 V8 engine apparently wasn’t enough for Nick Plocienik, whose ZL1 1LE is now capable of more than 800 horsepower.

The Magnuson supercharger certainly played a factor in that bump in power, but helping to get that power to the ground takes a team effort that includes the TracTive suspension, AP brakes, 6XD sequential gearbox and Patience Metal Fab custom aero.

When asked what makes the Camaro the Tire Rack Ultimate Track Car, Plocienik replied “Because this car has had a complete makeover and is just a monster with everything. It’s hard to beat a car that sounds like this but drives like a Porsche.”

Will the ZL1 prove to be the winner of our search for the fastest track machine on four wheels, the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports?

We’ll find out on October 22 at Eagles Canyon Raceway, where the Camaro will battle against some of the fastest cars in the country.

If both you and your car can pass a safety inspection, good news: You’re eligible to compete, too, so enter today.

Our Tire Rack Ultimate Track Car Challenge will also be sharing the weekend with the Tire Rack SCCA Time Attack Challenge.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports in association with Wilwood, Vitour Tire, CRC Industries, Red Line Oil and Racetech, with trophies from BimmerWorld, Nine Lives Racing, Falken Tire, Vbox Motorsport and American Muscle.

UTCC Confirmed: This track machine isn’t a car, it’s a Chevy truck

Photograph courtesy Francis Marchand

The wildest part about this Chevy truck? No, it’s not the LS3 V8, T56 transmission, Corvette front suspension, full roll cage or even the extensive use of aluminum and fiberglass throughout the build.

What makes this truck truly unique is the fact that its driver, Francis Marchand, frequently drives it on the street.

“I tow my boat with the truck,” Marchand tells us, adding that “my truck can be daily driven or [driven] anywhere in the country.”

And it’s certainly been “anywhere in the country,” having competed at tracks including Daytona, Summit Point, VIR, Lime Rock, Las Vegas Motorsport Park and the late PittRace.

But is it fast? Despite its various creature comforts like air conditioning, leather interior and a sound system, the truck “still embarrasses Corvettes, Camaros and Mustangs on the track,” Marchand says. “Even Teslas have a hard time keeping up with this truck.”

So, this might not be a car at all, but that just makes it an even more compelling entry into our search for the fastest track machine on four wheels, the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports, this year taking place at Eagles Canyon Raceway on October 22.

Car? Truck? Something else entirely? All that’s required to compete is that both vehicle and driver pass a safety inspection. If you can do that, register today.

Better still, our Tire Rack Ultimate Track Car Challenge shares the weekend with the Tire Rack SCCA Time Attack Challenge. (The more the merrier, right?)

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports in association with Wilwood, Vitour Tire, CRC Industries, Red Line Oil and Racetech, with trophies from BimmerWorld, Nine Lives Racing, Falken Tire, Vbox Motorsport and American Muscle.

UTCC Confirmed: A Corvette passion project 35 years in the making

Photograph courtesy Jim Maertz

Some projects last weeks, others last months, but this Corvette has been a passion project since Jim Maertz bought the car in 1991. (For everyone keeping score at home, that’s 35 years.)

“I have touched every nut and bolt on this car,” Maertz tells us, a fact that’s reflected in the lengthy list of modifications he included in his entry form.

While the body is mostly stock–aside from the carbon fiber hood, hand-laid carbon fiber targa top and chassis-mounted Nine Lives Racing rear wing, of course–the Corvette is powered by an LS3 V8 upgraded with an increased stroke, a forged bottom end, Texas Speed and Performance camshaft, Precision Race Components heads and a Fuel Air Spark Technology intake manifold. Total output? More than 600 horsepower.

A custom driveshaft sends that power to the rear wheels through a Dana 44 differential, with braking duties handled by six-piston calipers squeezing 14-inch rotors up front and 13-inch rotors out back.

The passion and the power are there for sure, but will both translate to a win in our annual search for the fastest track machine on four wheels, the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports?

We’ll find out on October 22, when some of the fastest cars in the country descend upon Eagles Canyon Raceway to battle for the title of Ultimate Track Car. The speed machines don’t end there, however, as the weekend will be joined by the Tire Rack SCCA Time Attack Challenge.

What’s eligible to compete? Virtually anything, so long as both driver and car can pass a safety inspection. Sounds like something you and your car can handle? Good, register today.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports in association with Wilwood, Vitour Tire, CRC Industries, Red Line Oil and Racetech, with trophies from BimmerWorld, Nine Lives Racing, Falken Tire, Vbox Motorsport and American Muscle.

UTCC Confirmed: 240Z? 300ZX? This machine offers the best of both.

Photograph courtesy SimtecMotorsports

Old-school looks, but with a much more modern engine, and gearbox, and wheels, and, well, I think you get the point.

“This 240z was taken down to bare metal and recreated in its entirety while still retaining the original monocoque,” its builder, Craig Simonian. “Everything was seam welded and the shell is incredibly strong at this point.”

Yes, a six-cylinder engine still powered the car, but it’s now one with a different configuration: “The entire drivetrain is from a ’90s 300ZX,” Simonian says, with that VG30DET, now fitted with a single turbo, capable of producing more than 600 horsepower.

Helping manage that engine? As Simonian explains, it’s a “standalone engine management system that was designed for aircraft,” that also features “an individual cylinder knock retard ignition setup in order to maximize power and efficiency.”

In total, the car weighs just 2500 pounds and boasts a 50/50 weight distribution.

See this 240Z/300ZX combo in person, and at speed, when it competes for the win in our Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports.

Our annual search for the fastest track machine on four wheels takes place at Eagles Canyon Raceway on October 22, where we’ll be joined by the equally impressive machinery of the Tire Rack SCCA Time Attack Challenge.

Just about anything is welcome–and encouraged–to compete, so long as both car and driver can pass a safety inspection. If that sounds like something you and your car can handle, register today.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports in association with Wilwood, Vitour Tire, CRC Industries, Red Line Oil and Racetech, with trophies from BimmerWorld, Nine Lives Racing, Falken Tire, Vbox Motorsport and American Muscle.

UTCC Confirmed: A Subaru Impreza WRX STI that saved its builder

Photograph courtesy Grant Sampson

Sure, you’ve likely rescued a project or two over the years, but has a project ever rescued you?

For Grant Sampson, this Subaru Impreza WRX STI certainly has:

“This build helped me save myself from a deep depression after leaving an abusive relationship,” he explains, adding that “my father was a huge part of this car and is dedicated to him in his memory.”

In its current form, the Subaru is good for more than 500 horsepower, with a few highlights from the list of upgrades including air jacks, nitrous, Lexan windows, a bespoke turbocharging setup and a custom aero package.

And, speaking of that aero package, Sampson points out that “I am self-taught and did all exterior work, including making much of the carbon over two years.”

On October 22, Sampson will pilot this Impreza against a formidable lineup of ultra-fast, ultra-powerful track cars in order to win our Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports.

Our annual search for the fastest track machine on four wheels takes place at Eagles Canyon Raceway, where we’ll be joined by the equally impressive machinery of the Tire Rack SCCA Time Attack Challenge.

Virtually anything is welcome–and encouraged–to compete, so long as both car and driver can pass a safety inspection. If that sounds like something you and your car can handle, register today.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports in association with Wilwood, Vitour Tire, CRC Industries, Vbox Motorsport and Red Line Oil, with trophies from BimmerWorld, Nine Lives Racing and Falken Tire.

UTCC Confirmed: Two wild takes on crafting the ultimate Lancer Evo

Photography courtesy Tony Szirka (left), Global Time Attack (right)

There are many paths on the journey to constructing a truly quick track car. And, sometimes, those paths run parallel to each other.

Such is the case for two Mitsubishi Lancer Evos entered to compete in our search for the fastest track machine on four wheels, our Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports.

The first of the two is the 2003 Lancer Evolution of Tony Szirka, featuring a paddle-shifted sequential gearbox, a rear-mounted radiator, extensive aero upgrades and even a few inches shaved off the top. (Three inches, to be exact.)

Described as “one of the fastest four-cylinder cars out there” by its driver, the Evo is good for some 900 horsepower.

In the other corner is a 2006 Lancer Evolution that has “gone pretty far down the rabbit hole,” according to driver Ben Denkers.

The mods are extensive, of course, and include an 800-horsepower powerplant mated to a sequential gearbox, a fully stripped interior and lots of big aero: “Big splitter, flat bottom, and a wing that probably has its own zip code.”

“It’s loud, raw, and a little unforgiving,” Denkers says of the Evo, “but it does exactly what it was built to do.”

Two very powerful, heavily modified and blisteringly fast Evos, yes, but there can only be one Ultimate Track Car.

See both of these cars compete, in addition to several more of the fastest track machines in the country, on October 22 at Eagles Canyon Raceway, home of the 2026 Tire Rack Ultimate Track Car Challenge.

Our search for the fastest track machine on four wheels welcomes virtually any vehicle, so long as both car and driver can pass a safety inspection. If you can manage to pass that, register today.

Taking place at Eagles Canyon Raceway, our Tire Rack Ultimate Track Car Challenge will be joined by the lightning-fast cars of the Tire Rack SCCA Time Attack Challenge.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports in association with Wilwood, Vitour Tire, CRC Industries, Vbox Motorsport and Red Line Oil, with trophies from BimmerWorld, Nine Lives Racing and Falken Tire.

UTCC Confirmed: 1200-plus horsepower Camaro that climbed Pikes Peak

Photograph by Rupert Berrington

At 14,000 feet above sea level, the rarified air contains approximately 40% less oxygen than at sea level. As hard as that might be for a person attempting to climb a mountain, imagine how hard it is for a car.

That’s a large part of why the wild machines that show up to compete in the legendary Pikes Peak International Hill Climb often boast massive power figures–to combat the altitude-induced power loss.

And, boy, does this 1967 Chevrolet Camaro, built by Mike DuSold, have a sizeable power figure: More than 1200 horsepower from the car’s turbocharged LS V8 engine.

Pikes Peak veteran Robin Shute piloted the Camaro to a fifth-in-class finish and ninth overall in 2025, but, on October 22, it’ll be competing for a different kind of award with DuSold behind the wheel, the title of Ultimate Track Car in our Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports.

Our search for the fastest track machine on four wheels welcomes virtually any vehicle, so long as both car and driver can pass a safety inspection. If you can manage to pass that, register today.

Taking place at Eagles Canyon Raceway, our Tire Rack Ultimate Track Car Challenge will be joined by the lightning-fast cars of the Tire Rack SCCA Time Attack Challenge.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports in association with Wilwood, Vitour Tire, CRC Industries, Vbox Motorsport and Red Line Oil, with trophies from BimmerWorld, Nine Lives Racing and Falken Tire.

Twin-turbo V8 Mustang wins Tire Rack Ultimate Track Car Challenge

What formula makes the Tire Rack Ultimate Track Car? Every year, we set out to answer that question with the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports.

This year, that winning formula is a built Ford Mustang, driven to the fastest lap time of 1:41.244 by Brian Faessler.

For his efforts, Brian wins the biggest trophy, a $1000 Tire Rack gift certificate and tons of ink in Grassroots Motorsports.

Second place, won by Andrew Dekoning in a Tesla Model S Plaid, wins a really big trophy and a $1000 Tire Rack gift certificate.

Rounding out the top three, and winning a big trophy and $1000 Tire Rack gift certificate, is Ryan Mathews in a Chevrolet Corvette.

The prizes don’t end at the bottom of the podium, however, as we had awards to hand out to the top eight finishers:

  • Tire Rack Ultimate Track Car presented by Tire Rack: Brian Faessler, Ford Mustang, 1:41.244 - The fastest car gets the biggest trophy, $1000 Tire Rack gift certificate and tons of ink in Grassroots Motorsports.

  • Second Place presented by Tire Rack: Andrew DeKoning, Tesla Model S Plaid, 1:47.204 - Wins a really big trophy, a $1000 Tire Rack gift certificate.

  • Third Place presented by Tire Rack: Ryan Mathews, Chevrolet Corvette, 1:49.018 - Wins a big trophy, a $1000 Tire Rack gift certificate.

  • Fourth Place presented by CRC Industries: Trevor Poquette, Radical SR3, 1:49.816 - Wins a trophy and a SmartWasher BenchTopPro from CRC Industries.

  • Fifth Place presented by CRC Industries: Dallas Reed, Chevrolet Corvette E-Ray, 1:52.599 - Wins a trophy and a SmartWasher BenchTopPro from CRC Industries.

  • Sixth Place presented by Wilwood: Andy Hollis, McLaren 720S, 1:52.672 - Wins a trophy and a gift certificate from Wilwood.

  • Seventh Place presented by Wilwood: Rob Wilmoth, Audi RS3, 1:53.149 - Wins a trophy and a gift certificate from Wilwood.

  • Eighth Place presented by Red Line Oil: Heyward Wagner, Mazda RX-8, 1:55.365 - Wins a trophy and a prize from Red Line Oil.

We also had superlative awards to hand out to some truly special machines:

  • Fastest Production Car on 200tw Tires presented by Vitour Tire: Ryan Mathews, Chevrolet Corvette Z06 - The fastest production car with a substantially unmodified firewall and floor pan running 200tw tires wins a trophy and a free set of Vitour P1 tires.

  • Fastest Production Car on under 200tw Tires presented by Vitour Tire: Brian Faessler, Ford Mustang - The fastest production car with a substantially unmodified firewall and floor pan running under 200tw tires wins a trophy and a free set of Vitour’s upcoming semi-slick tires.

  • Fastest Production Car on over 200tw Tires presented by Vitour Tire: Andrew DeKoning, Tesla Model S Plaid - The fastest production car with a substantially unmodified firewall and floor pan running over 200tw tires wins a trophy and a free set of Vitour Enzo V-01R tires.

  • Fastest BMW presented by BimmerWorld: Jerome Cahuzac, BMW M2 - Trophy and $250 BimmerWorld gift certificate

  • Fastest on Vitour presented by Vitour Tire: Dallas Reed, Chevrolet Corvette E-Ray - Wins a trophy and $1000 Vitour product credit

  • Fastest Car Without a Wing presented by Nine Lives Racing: Jerome Cahuzac, BMW M2 - Wins a trophy and a wing from Nine Lives Racing.

  • Editors’ Choice presented by VBox Motorsport: TC Kline, 2006 BMW Carbon Coupe - Trophy and a VBox LapTimer from VBox Motorsport.

  • Longest Tow presented by Sunoco: Andy Hollis, McLaren 720S - Wins a trophy and $100 gas card from Sunoco.

Thank you to everyone who competed, and to everyone who helped make this event possible.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports and fueled by Sunoco, in association with Wilwood, Vitour Tire, CRC Industries, VBox Motorsport and Red Line Oil, with trophies from BimmerWorld, Nine Lives Racing, and Falken Tire.

Register now for Superfly at the SCCA Time Trials Nats

Photograph courtesy Superfly

Superfly, a celebration of car culture, is coming to the Tire Rack SCCA Time Trials Nationals at Pitt Race this weekend. And registration for show cars is now open.

The Time Trials Nats features many events throughout the weekend. For example, our Tire Rack Ultimate Track Car Challenge kicks off festivities on Thursday, September 18.

Then, on Saturday, September 20, Superfly takes place. Attendees and spectators can arrive as early at 930 a.m. Superfly, however, officially kicks off at 4 p.m. and runs through 9:30 p.m.

Festivities include a DJ, low car limbo, classic video game arcade, mobile dyno (at an additional cost), food trucks, an R34 Skyline giveaway and more.

For spectators, parking is $10, plus an additional $10 for admission.

To display a car, costs begin at $30, and this includes admission for the driver and a guest. All show cars must register before arriving.

#FastFriday: A smile-inducing BMW M2

Sometimes the best track car is the one that delivers the most enjoyment. And for Jerome Cahuzac, that car is a BMW M2.

Currently set up to compete in SCCA Time Trials Tuner 1 and Gridlife Street GT, the M2 features a handful of modifications that includes M Performance coil-overs, M Performance exhaust, a Performance Eurowerks stage 2 tune, AP Racing front brakes, CSF intercooler, CSF engine oil cooler and a more track-focused wheel alignment.

While the M2 “might not be the most competitive in its class,” says Jerome, “it puts a ton of smiles on my face!” And, in the end, isn’t that what really counts?

Jerome and the BMW M2 are one of the latest entries confirmed to compete in the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports, our annual search for the fastest track machine on four wheels, September 18-21 at Pitt Race.

Any car and driver that can pass a safety inspection is eligible to compete, so if you meet those requirements, enter your car today. Curious what you’ll be competing against? See for yourself.

The 2025 UTCC will once again be held alongside the SCCA Time Trials Nationals.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports and fueled by Sunoco, in association with Wilwood, Vitour Tire, CRC Industries, Vbox Motorsport and Red Line Oil, with trophies from BimmerWorld, Nine Lives Racing and Falken Tire.

Race against Dallas Reed, Marketing Director of Vitour USA

Don’t just race against other cars shod in Vitour tires, race against the face of Vitour Tires in the U.S., Dallas Reed.

Reed, the Marketing Director of Vitour USA, is among the latest entrants into our annual search for the fastest track machine on four wheels, the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports.

Reed’s chariot of choice? A 2024 Chevrolet Corvette E-Ray with just a handful of mods–including Vitour P1 tires, of course.

The 2025 Tire Rack Ultimate Track Car Challenge takes place September 18-21 (that’s less than two weeks away) at Pitt Race alongside the Tire Rack SCCA Time Trials Nationals.

As long as both you and your car can pass a safety inspection, you’re eligible to compete–so enter your car today.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports and fueled by Sunoco, in association with Wilwood, Vitour Tire, CRC Industries, Vbox Motorsport and Red Line Oil, with trophies from BimmerWorld, Nine Lives Racing, and Falken Tire.

#FastFriday: A Subaru BRZ track car that prioritizes simplicity

Beauty can often be found in simplicity. Or, as is the case with Andres Salinas’ Subaru BRZ, there could be big prizes to be found there, too.

Currently configured to compete in the OnGrid Time Attack series, the BRZ is a “back to basics build,” says Andres, that's competitive on track, low on consumables, highly reliable and enjoyable to drive regardless of skill level.

The not-so-secret formula? Andres is kind enough to share a list of modifications, which includes Nitron coil-overs, an OS Giken differential, AP Racing brakes, 17x9.5-inch Apex wheels wrapped in Bridgestone RE-71RS tires, “a bunch of Cusco chassis braces,” a Zebulon rear wing as well as intake and exhaust components from HKS.

A straightforward approach to building a track car, yes, but is it enough to secure the title of Ultimate Track Car?

September 18-21, Andres’s BRZ will join some of the fastest cars in the country at Pennsylvania's Pitt Race to compete in our annual search for the fastest track machine on four wheels, the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports.

What’s eligible to compete? Any car and driver that can pass a safety inspection. If you meet those requirements, enter your car today. What sort of machinery has already entered? See for yourself.

The 2025 UTCC will once again be held alongside the SCCA Time Trials Nationals.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports and fueled by Sunoco, in association with Wilwood, Vitour Tire, CRC Industries, Vbox Motorsport and Red Line Oil, with trophies from BimmerWorld, Nine Lives Racing and Falken Tire.

#FastFriday: Here’s your chance to race against a McLaren 720S

Think you have a track car that’s faster than a modern supercar? Lucky you, here’s your chance to prove it.

Among our latest entrants into the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports, our annual search for the fastest track machine on four wheels? None other than GRM’s Tire Test Editor, Andy Hollis, and his McLaren 720S.

“The 720S is a totally streetable track weapon” Andy says of his McLaren, which has racked up numerous time attack wins as well as finishing at the front of the field multiple times in the grueling Tire Rack One Lap of America.

[How we survived the Tire Rack One Lap of America]

Although totally stock aside from Girodisc brake rotors, Cobalt brake pads and Finspeed wheels, the 720S is still good for over 700 horsepower straight from the factory and is capable of hitting 60 mph in less than three seconds.

It the McLaren 720S fast? You bet. Is it fast enough to win the Ultimate Track Car Challenge? We’ll find out this September, when it takes to the twists and turns of Pitt Race to battle some of the fastest cars around for the title of Ultimate Track Car.

What’s eligible to compete? Any car and driver that can pass a safety inspection. If you meet those requirements, enter your car today. And, while you're at it, see who you'll be competing against this year.

The 2025 UTCC will once again be held alongside the SCCA Time Trials Nationals at Pitt Race, September 18-21.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports and fueled by Sunoco, in association with Wilwood, Vitour Tire, CRC Industries, Vbox Motorsport and Red Line Oil, with trophies from BimmerWorld, Nine Lives Racing, and Falken Tire.

#FastFriday: This point-and-shoot Audi RS3 returns for more glory

Point-and-shoot cameras can be an ideal solution for the photographer that wants something that’s both quick and easy to use in most situations, but can the same thing be said of race cars?

Rob Wilmoth makes a compelling argument with his Audi RS3, saying that it’s “the most point-and-shoot car that I've ever driven. The suspension changes have transformed it from a 60% nose-heavy, pushy beast into a rotating machine that flies out of corners.”

In addition to 600 horsepower on tap, Rob’s Audi features custom aerodynamic modifications, BC Forged wheels wrapped in Vitour P1 tires plus brakes, suspension, a fuel system and more from 529 Innovations.

Rob previously placed 17th overall in our annual Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports last year with a fastest lap time of 2:17.400, achieving his goal of setting an even faster time than the year before–and did so while overcoming a transmission mount failure.

But will Rob be able to further improve on his time this year? We’ll find out in September, when his Audi RS3 joins some of the fastest cars around at Pitt Race to battle it out for the title of Ultimate Track Car.

Think you have a track car fast enough to win? If you and your car can pass a safety inspection, enter your car today.

The 2025 UTCC takes place September 18-21 at Pitt Race, once again alongside the SCCA Time Trials Nationals.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports and fueled by Sunoco, in association with Wilwood, Vitour Tire, CRC Industries, XS Power, AMT Motorsport, Vbox Motorsport and Red Line Oil, with trophies from CalltoGrid, Bimmerworld, Falken Tire, Miller Electric, Vorshlag and Hoosier Tire.

#FastFriday: Not a car, but a supercharged, LS3-powered Frontier

Yes, we do call our annual search for the fastest track machine on four wheels the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports, but that doesn’t mean trucks can’t compete.

Case in point? Rick Hoback’s Nissan Frontier. Why a truck? “I don't like normal,” Rick says “and I don't like easy, but I like fast.”

Us too, Rick. Us too.

While the complete catalog of modifications and upgrades is too long to list here, we’ll pick out a few favorites.

For starters, gone is the original engine, replaced with a de-stroked and supercharged LS3 engine good for over 550 horsepower and backed by a six-speed manual transmission.

Other highlights include a hand-built oil pan, billet flywheel, “massive” aluminum driveshaft, BMW ABS, three-way adjustable dampers, eight-point roll cage, custom independent rear suspension and a Pathfinder R200 differential re-geared to 3.69:1 and fitted with a KAAZ 1.5 Way Clutch Type limited-slip.

See this Nissan Frontier compete against some of the fastest track cars around at our Ultimate Track Car Challenge, September 18-21 at Pitt Race.

Think you have a track car fast enough to win? If you and your car can pass a safety inspection, enter your car today.

The 2025 UTCC will once again take place alongside the SCCA Time Trials Nationals.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports and fueled by Sunoco, in association with Wilwood, Vitour Tire, CRC Industries, XS Power, AMT Motorsport, Vbox Motorsport and Red Line Oil, with trophies from CalltoGrid, Bimmerworld, Falken Tire, Miller Electric, Vorshlag and Hoosier Tire.

#FastFriday | Porsche 911 GT3: A winning off-the-shelf solution?

An ideal off-the-shelf track car? For Tanner Baker, the answer is a 2022 Porsche 911 GT3.

And instead of an exhaustive list of modifications and upgrades for many track builds we see, Tanner’s 911 keeps things more minimal because, as Tanner explains, “Porsche has done a pretty good job with this one!”

Perfect out of the box? Perhaps. Perfect enough to win the Tire Rack Ultimate Track Car Challenge Presented by Grassroots Motorsports, our annual search for the fastest track machine on four wheels?

We’ll find out September 18-21, when this 911 GT3, along with several other of the fastest track cars in the country, descend upon Pitt Race to battle it out for the title of Ultimate Track Car.

Think you have a track car fast enough to win? If you and your car can pass a safety inspection, enter your car today.

The 2025 UTCC will once again take place alongside the SCCA Time Trials Nationals.

The Tire Rack Ultimate Track Car Challenge is presented by Grassroots Motorsports and fueled by Sunoco, in association with Wilwood, Vitour Tire, CRC Industries, XS Power, AMT Motorsport, Vbox Motorsport and Red Line Oil, with trophies from CalltoGrid, BimmerWorld, Falken Tire, Miller Electric, Vorshlag and Hoosier Tire.

Do You Have the Ultimate Track Car?

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