Originally created as a testing facility for big rig trucks in 1969, Jacksonville Superspeedway may appear to be a simple clone of other high banked 2.5-mile superspeedways, but nothing could be farther from the truth. Jacksonville is quite challenging for a track of this type, including the areas where the banking drops away faster than expected, leaving a stock car chasing it’s tail towards the wall in a way that may be difficult for some to control.