Hi guys,
this is a good starting point if you want to make a racing game using Blender's vehicle constraint. I stripped it down to the very basics to make it more accessible. You usually don't need to touch the python code to setup your car and start driving. I included a documentation on how to do it. Let me know if you have any problems.
Btw. the example setup works with the arrow keys!Have fun, Cheers
Lets try!