Riley Motorsports is proud to officially announce its full season entry in the 2026 GT World Challenge America powered by AWS championship, with Slade Stewart and Andy Lee fielding the No. 14 Riley Motorsports BMW M4 GT3 in the competitive Pro-Am class.
Stewart and Lee are set to continue their successful multi-year partnership as teammates, combining proven talent, consistency, and championship-focused ambition. The pairing represents a strong blend of experience and pace as the team prepares for a full-season campaign in one of North America’s premier GT racing championships. They will also welcome the return of the beloved “Sparklefarts” bright pink unicorn livery. Originally designed by Slade Stewart’s children, the eye-catching design has become a fan-favorite for its creativity, humor, and unmistakable presence on track.
Slade Stewart brings a strong background in professional sports car racing, having been crowned the 2022 Super Trofeo LB Cup class champion before co-driving with Lee the year after in the Pro-Am category. He has established himself as a reliable and competitive presence on the grid, and is ready for the start of a new chapter in multi-class GT racing.
“As I continue to grow in motorsports as in life, it is important to me to always seek out the best there is, no matter the circumstances,” said Slade Stewart. “Andy and I are excited to announce that we have partnered with Riley Motorsports as we shift gears into the 2026 SRO GT World Challenge America season. Riley Motorsports has a deep and rich history in motorsports spanning over 60 years. We couldn’t be happier with the start of the new relationship, so make sure to tune in and follow out journey together this season.”
Andy Lee adds extensive GT racing experience to the Riley Motorsports lineup, having competed in high-level sports car championships for more than a decade, amassing 12 victories and 43 podiums in the process. He also boasts prior knowledge of the BMW M4 GT3 platform, a particularly valuable asset as the pairing looks to make an immediate strong impression.
“After several successful seasons in Lamborghini Super Trofeo, Slade and I were looking for a new series to continue our progression,” added Andy Lee. “SRO GT World Challenge America felt like the natural place to go to keep growing as teammates and drivers. The opportunity to do it with such an illustrious team as Riley Motorsports is just a dream. We can't wait to continue with the team and work towards the opening round at Sonoma Raceway!"
As part of their ongoing preparation efforts, Stewart, Lee, and Riley Motorsports completed a pre-season test at Sebring International Raceway, a critical step in fine-tuning the BMW M4 GT3 ahead of the opening rounds of the 2026 campaign, held at Sonoma Raceway from March 27th to 29th.
The season will span across seven North American premier road courses in total, with the first six rounds consisting of a three-hour race format before concluding at the iconic Indianapolis 8 Hour, a cornerstone event on the GT World Challenge America calendar. For the season finale, Riley Motorsports will strengthen its effort with the addition of a third driver.
As the Riley Motorsports and Kellymoss organizations look forward to unveiling their full roster and campaigns in SRO America competition, further announcements regarding additional team entries and driver lineups will be released at a later date.