Motorsport Week delved into five key, developing stories to follow in the upcoming 2025 IMSA SportsCar Championship season.

Mario Andretti is arguably the greatest IndyCar driver of all time, having won a championship in both F1 and the pinnacle of the American open-wheel racing series.

Vasser Sullivan and Lexus Racing announced the driver lineups for the SealMaster-liveried No. 12 and No. 14 Vasser Sullivan ...