David S. Wallens said:
This year’s Roar also saw the debut of the IMSA VP Racing SportsCar Challenge. This new series features Le Mans Prototype 3 machines alongside GT4-spec door-slammers in a pair of 45-minute sprint races per race weekend.
I thought the Michelin Pilot Challenge was where GT4 cars raced within the IMSA structure. Am I confused about the cars or are there now two separate GT4 series under the IMSA umbrella? I try to follow it but I have trouble with the constantly evolving alphabet soup of sports car racing. The one car class per race, one driver per car format of NASCAR/F1/IndyCar is a lot easier to follow.