It would be nice if we could have a supercharger whine that could be created using shift+a. Sure none of the cars are s/ced yet, but I sure love that whine.
Well... You could just use the air-thing sound, that just goes whooosh now. Find a whine-sound and try it out. It gets louder as you step on the pedal, not sure about following the rpm's though.
please can we have elephants in the stands making monkey sounds and how about mice in the pits roaring like lions or running across the track and just as your about to hit them they roar at you like a lion and then turn into elephants and stand on your car