how to animate car along a bumpy road?

Hi all!

I have a little problem with my animation project. I want to animate my car going along the road following it’s ups and downs. I’ve tried many things but Ijust cant seem to make it work…

I have a road that is associated with a bezier curve in order to be curved and bumpy. I have my car, rigged but with no suspension, associated to another bezier curve so that it follows the road but not exactly in the same way so that sometimes is on one side of the road and other times on the other side of the road. but I m getting frustrated because I cant align the wheels with the ups and downs of the road.

Can someone point me in the right direction?

thanks

Carlos Reial