RILEY MOTORSPORTS/Stewart Motorsports

Riley Motorsports represents the pinnacle of American sports car racing—an organization defined by over six decades of engineering leadership, competitive excellence, and championship pedigree. Founded by the Riley family, the team has been instrumental in shaping modern endurance racing, securing victories at the Rolex 24 At Daytona and contributing to winning efforts at the 24 Hours of Le Mans, while consistently competing at the highest levels of international motorsport.

At the core of Riley’s legacy is a vertically integrated approach to performance—where design, engineering, and race operations exist under one roof. Through Riley Technologies, the organization has developed some of the most successful prototype and GT platforms of the modern era, earning the trust of leading manufacturers and delivering results across both factory and customer programs.

In partnership with Stewart Motorsports, this heritage enters a new expression—one that pairs proven race-winning capability with a contemporary, brand-driven vision for the future of GT racing.

Led by driver and entrepreneur Slade Stewart, Stewart Motorsports introduces a distinctive identity to the program—where competitive ambition is matched by originality and cultural resonance. Central to this is the now-iconic Sparklefarts platform: a bold, unconventional presence that has evolved into one of the most recognizable and engaging identities in the paddock.

Alongside Stewart, veteran driver Andy Lee brings a depth of experience and racecraft refined over more than a decade of top-level GT competition. Together, the pairing reflects a balance of precision, consistency, and shared intent—forming a cohesive driver lineup built for sustained success in the Pro-Am category.

Campaigning the BMW M4 GT3 in GT World Challenge America, the program marks a deliberate step into the upper tier of GT competition—where heritage, performance, and identity converge.