by Mkruzer » Tue Aug 22, 2017 3:35 am
Unfortunately, this is one of the limitations on racing in DI. There doesn't seem to be any way to edit the properties for vehicle races.
I remember when I first got DI, I was really excited by the prospect of building my own racetracks, but the limitations on racing just seem to make it not worthwhile. So after my first few attempts I just gave up on it.