Meet our Race-Winning
ChampCar Endurance Miatas
Our race-winning Mazda Miatas are the ultimate expression of grassroots racing performance, built for relentless reliability. Designed to excel in the highly competitive ChampCar Endurance Series, each FASTx ChampCar build is a fusion of smart engineering, race-proven components, and real-world track experience. These machines are stripped down to the essentials, reinforced for endurance, and tuned for maximum efficiency over long stints—delivering performance that punches well above its class. FASTx ChampCars are built to go the distance—and win.
Scroll down for build details and more.
BUILD A CAR THAT CAN SURVIVE 15 HOURS OF ENDURANCE RACING WHILE MAINTAINING A WINNING PACE
The Goal:
LEading the 2025 national championships
OVERALL WIN at Harris Hill Raceway Spring 2025 and Fall 2025
Overall Win at Ozarks 2025
D CLASS WIN AT Harris Hill
a Class Lap Record at Harris Hill
5 race finishes at Harris hill, 2 at Mid-Ohio, and 1 at High Planes Raceway
The Result:
Full Build details
Black Flag Sarcoma Racing
ChampCar Endurance Miata
Drivers: Callan Spence, Chas Spence, Jim Ivan, Jack Ivan
Owner: Chas Spence
Builder: Kevin Fennell and FASTx Autosport
Fastx took this car down to a completely bare chassis and built it back up as light as possible. This means removing all the sound deadening and rust protection, cutting off every bracket, and using less hardware then the OEM did wherever possible to make the lightest most reliable champ car we know.
Engine: 1.8 VVT
Electrical: MoTeC ECU and AiM PDM32 Dash and power
Wheels: Koenig 15x8
Tires: Vitour P1
Gearbox: OEM 5 speed
On-Track success
Our ChampCar Miatas are a clear example of how far grassroots racing can take a team—serving as a key stepping stone that’s helped Black Flag Sarcoma Racing move beyond local club racing into higher levels of competition.
While our time attack builds prove we can make serious pace, these Miatas highlight another strength: endurance. Designed to go the distance, they complete 15-hour race weekends without issue, proving their reliability under pressure.
That doesn’t mean they’re slow. In Spring 2025 at the Harris Hill Double, our Miata not only secured an overall win but also set the fastest lap in Class A. With a Class D victory and nearly a dozen strong finishes in the last two years, FASTx-built endurance cars continue to prove they can win—and keep winning.
Off-Track success
Our ChampCar Miata program has become a proving ground—not just for drivers, but for our processes, systems, and team development. These cars allow us to train drivers, test race strategies, and refine our approach to reliability and execution in a real-world setting.
They’ve also been instrumental in growing the visibility of Black Flag Sarcoma Racing. With eye-catching liveries and a compelling mission, these cars have helped raise awareness for the Synovial Sarcoma Foundation while bringing new fans and supporters into the racing community.
Whether it’s building confidence in racers or generating media content and brand engagement for our partners, our ChampCar Miatas continue to deliver value far beyond the track surface.
