Glad to see the replies and the pics, thanks guys. 1/10 scale sized is out of the question for me, wife finally figured out it is not a garden...lol
Reality is the track will never see more than two cars on it. Generally it will only have one and that will be me. I probably will not put down tubes or anything, but probably build more of an obstacle type thing with a couple berms and some jumps. Kind of like a monster truck or x-games dirtbike coarse. If I ever get it done I'll post a pic.
: )