IMSA today released Technical Regulations for all four classes heading into the 2017 IMSA WeatherTech SportsCar Championship season, which opens on Jan. 28-29, 2017 with the 55th Rolex 24 at Daytona. The Prototype class will see a major technical shift in 2017, as two different types of racecars, Daytona Prototype...

As the IMSA WeatherTech SportsCar Championship closes in on what likely will be a landmark 2017 season, with the dawning of a new Prototype era and a number of new GT racecars and teams joining highly competitive, established programs, entry applications are now being accepted by IMSA.The 2017 WeatherTech Championship...

A new three-class format for the WeatherTech SportsCar Championship, a shift toward GT4 machinery in the Continental Challenge, and an overhaul Prototype Lites were among the changes confirmed on Friday after IMSA laid out its road map for the next three years.The first of the changes, which were announced during...