The Machines
GT World Challenge America
The No. 14 BMW M4 GT3 — wearing the fan-loved Sparklefarts livery designed by Slade's daughter — is Stewart Motorsports' GT World Challenge America weapon. Built around BMW's P58 twin-turbo straight-six, it pairs factory GT3 engineering with the team's bold, personal identity.
Engine
3.0L twin-turbo inline-6
Power
~590 hp (BoP)
Gearbox
6-spd sequential, RWD
Weight
~1,285 kg dry
VP Sports Car Challenge
Engine
5.6L Nissan V8
Power
~455 hp
Gearbox
6-spd sequential, RWD
Weight
~930 kg
Lamborghini Super Trofeo North America
The original Sparklefarts. Slade campaigned this Lamborghini Huracán Super Trofeo EVO2 in Lamborghini Super Trofeo North America from 2022–2025 — the car that started the unicorn livery and carried him to the 2022 LB Cup championship. A past-seasons machine, no longer the team's current entry.
Engine
5.2L naturally-aspirated V10
Power
620 CV (~612 hp)
Gearbox
6-spd sequential, RWD
Weight
~1,270 kg dry
GT World Challenge America. The BMW M4 GT3, No. 14.
VP Sports Car Challenge. The LMP3 prototype, No. 29.
Riley Motorsports. Decades of championship sports-car pedigree.