Speaking of well engineered aux braking. Here is another example of "bending the rules" with a well designed air brake system. Not shown in the picture is the complicated amplification pulley system. Attached at the top rear of the wing is a rope that goes thru a set of pulleys with the last being attached to the roof directly above the drivers right shoulder. At the end of the rope is a loop that goes into the cockpit and around the drivers right knee. With proper extension of the right leg against the brake pedal, the rear deck is quickly drawn up into the air stream thus quickly slowing the car.
What about the accelerator pedal you ask. That has been addressed with a fly by wire system. Electrodes attached at each corner of the drivers mouth control forward speed. The higher the edges of the mouth are drawn up, the faster the car goes. A fail safe has been built into the engine management system so that if the mouth gets out of control, the engine explodes culminating in a cloud of blue smoke, which quickly lowers the edges of the mouth, thus stopping the car.
All of this is perfectly legal according to the current ALMS rule book.