RACER’S Marshall Pruett has spent the last year tracking developments with the IndyCar Series’ new chassis, engine, and the rest of what’s on the way for 2028.

The 2024 IMSA WeatherTech SportsCar Championship season may have ended only a month ago, but preparations for 2025 begin this weekend.IMSA has moved its annual pre-season test at Daytona International Speedway to November from the early December date that the three days of track time has occupied for the last...

This week’s three-day IMSA test at Daytona International Speedway will feature approximately 30 cars in attendance from all four WeatherTech SportsCar Championship classes, and in a new twist, the series will be doing more than trying to gather Balance of Performance data to use for January’s Rolex 24 At Daytona.The...

From the beginning of the the current-era GTP class, IMSA and FIA have used torque sensors -- collars on the LMDh cars' halfshafts to measure power and energy output. For next season, in order to add to the data they already are using to set Balance of Performance, the series...