Having attended both F1 and IMSA races, I found some distinct differences, and you might be surprised at what I discovered.

A skid block under the No. 8 Tower Motorsports car was deemed too thin, which could provide aerodynamic advantages. The ...

IMSA stripped Tower Motorsports of its LMP2 class victory at the Rolex 24 at Daytona because of a technical infraction ...

IMSA President John Doonan said this weekend at Daytona International Speedway that 89 cars applied for entry into this ...

Unusual shows of passion, non-traditional viewing platforms added up to a winning Rolex 24 for the glass offices at IMSA.

One of the most appealing parts of endurance sports car racing for manufacturers is the regulatory convergence between IMSA ...

Aston Martin has announced its driver line-ups for WEC and IMSA this year, with the first images of the Valkyrie Le Mans ...