Car not Moving? Frustrated with Car Rigging

So I have been at this for a week and I am ready to throw my PC out a window. I CAN NOT get this car to move. The wheels turn and such but they will absolutely not collide with the ground at all. Does anyone have any idea why? I posted once before but got no answers. I am working on a school project and creating a racing game with no cars is kind of… stupid.
I attached screenshots to help.