BATHURST, N.S.W. – Will Davison fought off a fierce charge from Shane van Gisbergen to win the 56th edition of the Supercheap Auto Bathurst 1000 Sunday afternoon. Davison’s .1434-second margin of victory was the closest in the history of the Great Race, and was his second career win on the Mountain. Co-driver and team owner Jonathon Webb picked up his first …