Road Racing Dart

The Duster and yelllow Challenger look like they are at a track day or HSAX. The HSAX is a higher speed autocross concept done on a road course. Much easier to drive your car to those than for a wheel to wheel race.

I believe BBORR is a rally style timed event like Silver State Classic. Within the speed class you chose, the goal is to match your predicted/expected time as close as possible. Very challenging, but also gets a good number of cars that are driven to the event.