For those that are wondering, the yellow car in front is a Cadillac V-Series.R, which is a high performance hypercar built to Les Mans Daytona h spec. It is designed by Cadillac/GM and built by Italian manufacturer Dallara-hence why both of their logos are on that car.
The car in the back is a Corvette C8-R, which is used on most of the other endurance races that GM is involved in. It is more conventional, and is designed and built by Chevrolet/GM.