One thing that is not obvious in these pictures but I noticed in person is the engine seems to have been moved rearward in the chassis at least 1 foot, maybe more. Look at this photo I took at Daytona, the radiator and the airbox is all you can see of the engine when the hood is off. I'm not sure how they were able to relocate this so much within the GTLM rules but apparently they were. Also, the scoop on the hood completely covers the radiator. All of the air passing over the radiator is exhausted out that scoop and over the car adding to the front end down force.