Anti-dive and Anti-squat

If a car did not have a suspension setup there would be very little dive and squat under braking and acceleration. But the ride would be extremely comfortable as you would be thrown forwards and backwards violently under braking and acceleration. A large part of that force under braking and accelerating is absorbed by the suspension. When the suspension absorbs and cushions these movements the side effect is dive and squat. Anti-dive and anti-squat percentages are always calculated with respect to a vertical plane that intersects the vehicles centre of gravity.

Anti-dive and anti-squat are percentages that indicate the level at which the front of a car dives under braking and the rear of a car squatting under braking. These percentages differ from car to car due to different suspension setups and the percentage of dive and squat between the front suspension and rear suspension differ in the same car as they are designed differently with different goals in mind. Suspension setups designed with comfort in mind have higher percentages of anti-dive and anti-squat as they are built to offer an enhanced cushioning ride. Suspension setups designed for a sporty ride will have lesser percentages of anti-dive and anti-squat as they have a stiffer spring setup.