
Trans Am Series Launches 2025 Season at Buttonwillow with Record 23-Car Field
The Trans Am Series presented by Pirelli Western Championship is set to launch its 2025 season at Buttonwillow Raceway Park, marking the series' first-ever visit to this 2.64-mile track near Bakersfield, California. Twenty-three competitors will compete on the CW14 course configuration.

Race cars competing at Spring Mountain

Racing event weekend schedule
Key Highlights:
- New TA Cup class debuts with six entries, featuring 600hp spec tube-frame vehicles with silhouette bodies
- Ken Thwaits returns after two years, competing in TA Cup
- Former champions Brody Goble (2023) and Michael LaPaglia (2024) return to defend their titles
- Brad McAllister and Caleb Shrader bring recent Buttonwillow success experience
- Naake Motorsports fields four cars across TA2 and TA Cup classes
Notable Entries and Debuts:
- Six new competitors join the series, including Norwegian driver Stein Frederic Akre
- Local favorite Derek Thorn from Bakersfield debuts in TA Cup
- 11 California-based drivers among the competitors
- National competitors Barry Boes and Mia Lovell join the Western Championship
Classes and Competition:
- TA Cup: New spec class with six entries
- CUBE 3 Architecture TA2 Series: Features returning champions and new talent
- XGT: Welcomes new competitor JD Koos in Porsche GT3 Cup
- SGT: Simon Asselin joins in Porsche 991.2 GT3 Cup
The event begins a three-race California streak for the Western Championship, featuring a diverse field of experienced racers and newcomers across multiple classes.
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