Without car shocks, your car would be a very bumpy ride. When you go over a speed bump or pothole, the car bounces up and down. Shocks are shocks are basically giant springs that attach the car to the wheels. When the car hits a bump, the springs compress and absorb the shock of the impact. This helps to keep the car from bouncing around too much and makes for a smoother ride. So, do you really need car shocks? Yes, they may not be absolutely essential, but they certainly make for a more comfortable ride.