The Old Piston Cup Racetrack is an old speedway where the Piston Cup Racing Series ran years ago. This is the track where Doc had his terrible accident after Sammy sideswiped him. The turn of the speedway is seen on The Daily Exhaust.
A lot of years ago, the Piston Cup raced on dirt ovals, empty of security. So when a car crashed, the damage was most. In fact, the cars were also empty of security. Doc was one of the super-lucky ones to have survived.