After a 100-minute sprint race to whet the appetite, the 2021 IMSA SportsCar Championship gets underway properly this weekend. With plenty of significant changes during the winter, here are the key points you need to keep an eye on

The 2021 IMSA SportsCar Championship kicks off this weekend with a packed grid of 49 cars contesting the traditional season-opening Daytona 24 Hours.

With reigning Daytona Prototype international teams’ championship winner Team Penske not returning and close runner-up Wayne Taylor Racing learning new machinery, there’s a different look and feel to the new season, which welcomes LMP3 machinery for the first time and marks the swansong for the GT Le Mans class.

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