FamineNo clue. But the SLR's is an airbrake, to stabilise the car under heavy braking loads.
Actually, that could've been about to happen anyway. Do it twice, once braking in midair (Using the brakes) and once not, and see if it's any differentWhat I did was dive it reverse on Seattle, then on the big downhill section I mashed the breakes in the air. This cause the car to pitch backward slightly, hinting at some downforce being generated.