good explanation Daso:bigup:
One other thing about wheels. Even if some wheels are the right bolt pattern for a particular car, that doesn't necessarily mean they will fit properly. Offsets play a big role as well.(offset is how many millimeters the wheel is off the hub. For example, a 17 inch wheel with a bolt pattern of 5x114.3 and an offset of 42mm will definitely fit properly on a last generation Honda Prelude, but will not fit properly on a Honda S2000 even though they have the same bolt pattern. Basicaly, if you don't have the proper offset, your wheels will be rubbing all the time and do damage to the car.