I'm honestly surprised Feld hasn't had a simulation built for them yet, they could save $ vs testing with a real truck. Obviously no simulation will replace seat time but it will familiarize drivers with the characteristics and controls of a truck. With todays technology they could literally build a track laser scan it and import it into the software, same goes for tires, chassis, trucks and have everything to a scale size.
Game engines have deteriorating tracks, like if you made a few passes a groove would start to form and the loose dirt built up on the outside with different grip levels, crush cars/dirt ramps would change every time they're hit. You could give a new driver a chance to purposefully drive with a broken truck and figure out how much of a difference a flat tire, broken sway bar, rear steer motor that broke, etc. would make. The potential is unlimited depending on how much $ they wanted to spend on having someone develop it for them.