The first thing that you are wondering is how the races are setup.
Most race tracks have a limited amount of space and resources that they can run races with.
The type of tracks mimics their full-scale counter parts. On dirt oval race tracks you can find modifieds, sprints, and full-bodies circling the tracks. On the paved tracks you ll find Nascar cars and trucks. You ll also find Indy and touring cars. On the off-road tracks you ll find stadium trucks and dune buggies.