Now that I have Java installed I can try my hand at making the Martinsville Speedway.
But let me warn you, I do not know how to use Blender to make the grandstands and other stuff, so it will be
very basic I'm afraid.
Next I
might try making VIR but don't get your hopes up.

First I have to find the track specifications so I can get the turns and the banking right for both tracks.