Thanks for checking it out 3run!
yes I am re-uploading a new version now as I fixed a few things myself.

This is the A8 car template

Edit: The crash is from the colormap I think.. Without it the terrain complains it doens't have it a few times with error messages - With the file the engine complains once

Didn't know thats what cause the old physics error. I was getting it in another level (which I pulled from the template), but not the main level (which I created).