 He was inspired to build the 2.75 mile-long track.At 100 feet wide and 30 feet high to all bends, and with a fast downhill spur to assist the engines 'Start Hill' it attracted many spectators.Locke King was spurred on by Selwyn Edge (1868–1940), an experienced racing driver and car dealer, to complete the project with his highly publicised challenge that he would drive the course in a Napier (Lion) single-handedly at a constant 60 mph for 24 hours without a rest break.