IMSA’s Balance of Performance spreadsheet for this weekend’s Rolex 24 At Daytona lists a model known as the “Corvette C8.R GTD.” It’s a new listing that’s found nowhere other than the WeatherTech SportsCar Championship. And if you know the backstory story, the two factory Corvettes are the only cars among...

IMSA alerted its teams on Thursday to a pair of significant changes to its technical and organizational teams, with Matt Kurdock being appointed to the new role of Technical Director.Kurdock’s promotion from the role of Director, Technical Systems, also includes taking charge of IMSA’s Balance of Performance process, and will...