"In the chassis and suspension area, this is where you are going to work out the car's grip, suspensions, and other things. This section of the upgrades is pretty easy to figure out. Throw in a pair of hi-grade shocks and struts, which also lower the ride height of your car. Lower height means less wind resistance and faster speed and acceleration. But as you know, faster speeds also mean harder cornering. So make sure you either know to compensate by either taking turns slower on the racetrack, or adjusting some of the other parts in the aerodynamics."