While this is a very broad question, there are many avenues with which you can customize a car. For instance, you can start by customizing a car's looks. This might entail installing a body kit on it, putting on a rear spoiler, or fitting a new set of wheels. Tiny details can make a huge difference in a car's appearance. So, you could also consider lowering the suspension to give it a mean stance. Or, even changing out the exterior trim for something fancier and sportier. If you have the budget, you could further customize a car's looks with a new coat of paint, some decals and pinstripe vinyl, or powder coating the wheels. Regardless, there are many other parts of your car to customize, like the seats, and stereo system, not to mention performance enhancements.