The Trans Am Series presented by Pirelli’s Western Championship returns from hiatus for the PIR SpeedTour at Portland International Raceway, with live streaming available.

The Trans Am Series presented by Pirelli Western Championship kicks off its 2025 season at Buttonwillow Raceway Park with the Buttonwillow SpeedTour. This is the first time that Trans Am has ever visited Buttonwillow, which is located outside of Bakersfield, Calif. This weekend, 23 competitors will take on the track’s...