Let the Car-Wheels rotating, problem

i’m actually making a little car-game, and now i want that the car Wheels are rotating, the right java-script i have from a tutorial:

flWheel.Rotate(leftWheel.rpm / 60 * 360 * Time.deltaTime, 0, 0);

how i have to do this in the project itself? every wheel have two parts, and they have to rotate. some ideas?

until now the wheels were rotating, but this in a big radius and not about its own axis.
It made ​​big bows around the car

here a picture of the setup:

http://www.imagebanana.com/view/n3khfhy8/dasda.PNG

if someone’s better in german, response in german please

If the wheels are not rotating around their axis, you need to change the pivot point for the object. Create an empty game object, and drag the wheel onto it in the hierarchy
(so that the wheel becomes the ‘child’ of the empty game object). Then move the wheel in relation to the empty object (the pivot) until the pivot is exactly in the center of the wheel.