What more appropriate place to test Britain's, maybe the world's, fastest pre-war Bentley than on the Melbourne Loop, where the supercharged 650bhp Mercedes once roared in anger. Climbing in behind the lorry-like four-spoke wheel and dropping down into the snug black leather bucket seat, thoughts of the rubber burnt by Caracciola and Seaman comes to mind as my thumb aims at the cabinet-knob sized starter. Under the long bonnet of this exotic. Royal Blue vintage special is 8 litres of serious supercharged grunt...  Continued...