[EGSMachine]

i am wondering about what one can do to make the underside of a car make its own downforce.
so here is what i think so far:

1) you can not make the whole underside one level plane. if what i understand about a wing, the air above the this plane is moving "faster" which creates a low pressure area for the "slower" air to "fill", which creates lift.

2) divert the air. front spoilers move alot of the air out to the sides of the car, buit there is still some air underneath the car. how can i divert this air to create downforce? i can try making vanes or skirts that push the air out the sides. what are some other options? i have seen model cars of some race cars, but i don't know how accurate they may be.

so i have to get the air out, or make it work for me. i want it to work for me.

thanks,
e