 At various stages throughout the history of the 24 hour race there have been categories for petrol and solar hybrids as well as a commuter category where more than one rider was in the vehicle.1997 saw the event moved to Sturt Reserve, Murray Bridge, where for the first time public roads were sealed off specially for the event.It was felt that the new venue would comfortably accommodate the number of entries anticipated, provide a greater challenge for teams and provide a better atmosphere for all competitors, spectators and visitors.