[AeroMcAeroFace]

Originally Posted by JulianEdgar

If you reduce the effective weight of the car by half through aerodynamic lift, you will decrease the unloaded car's suspension static deflection by half. If the car has a static deflection of (say) 3 inches, and you have 50 per cent lift, the car will ride 1.5 inches higher. That will increase CdA, and may well in fact cause further lift.

(The opposite happens when you lower a car* - Cd, CdA and Cl all tend to decrease. *Road cars, with normal ground clearance.)

Adaptive suspension