MADELINE STEWART Signs Three-Year IMSA Deal, Eyes WeatherTech Championship

December 22, 2025

• MADELINE STEWART landed a three-year contract with Czabok-Simpson Motorsport that’s designed for serious progression—not just a quick ride. The 25-year-old Kiwi will debut in IMSA Michelin Pilot Challenge next year driving a Porsche 718 Cayman GT4 RS Clubsport, with both driver and team targeting a move to WeatherTech SportsCar Championship by 2028.
• This isn’t some random pairing—STEWART has methodically climbed Porsche’s development ladder since moving to the U.S. in 2023, competing in Porsche Carrera Cup North America for two seasons with JDX Racing after cutting her teeth in Porsche Sprint Challenge programs both stateside and back home in Australia with Earl Bamber Motorsport.
• The multi-year commitment shows real investment in STEWART’s commercial and competitive development, with CSM co-owner Stephen Simpson specifically noting her “proven Porsche experience” and how she fits their long-term vision. It’s the kind of strategic partnership that actually builds careers rather than just filling seats for a season.

czabok-simpson motorsport, imsa michelin pilot challenge, porsche 718 cayman gt4, weathertech sportscar championship