Coil springs in Pontiac Grand Prix automobiles can be categorized under car parts they offer support to the automobiles by holding its weight and cushioning it from any bumps on the road. They assist in regulating a car's suspension and call for adjustments such as when a car develops sags or has abnormally worn tyres. In the event that the coil springs are worn, there is always an opportunity to replace it through the option that is available in the current market, for newer models, one can order OEM spec spring while for Grand Prix models, there are authentic reproductions. Coil springs that have been used in Pontiac Grand Prix models are, linear rate, progressive and dual rate springs. The linear rate springs have fixed stiffness, on the other hand progression springs offer improved roll stiffness at higher loads and smooth ride. As for the springs, the dual rate type comprises two different rates which in turn improves the performance. Further, coil springs that are made of steel can be readily adjusted for height to enable the use of a variety of wheel and tire sizes. Altogether, the coil springs in Pontiac Grand Prix motor vehicles have a very big place in making sure that the motor vehicle is balanced when it comes to the axles and, in addition, that the ride that is experienced is very comfortable.