Downforce by cars body

[cologne]

Yes, same as wings!
In reality things are more complicate: car-body-downforce depends much of the distance to the track.

The AX2 car has such a system, you can see the diffusor.
But defined is a wing-front, that doesn´t exist. The wing-rear is correct. A complete drag definition could include the car-body-effect:

Code:

[ drag ]
position = 0.5, 0.0, 0.2
frontal-area = 2
drag-coefficient = 0.3
surface-area = 4.0
lift-coefficient = -0.2

Normal cars generate positive lift.