Overview: Rallying's governing body FISA has reacted quickly to curb the power of the super cars following the tragic death of Henri Toivonen in the Corsican Rally. Following its earlier report into rally safety, Top Gear looks at the dramatic effects the new rules will have on the sport. Chris Goffey test-drives the new Alfa 75 and drives safely among pedestrians in Holland. When is a spare not a spare? Sue Baker examines the phenomenon of the 'skinny' spare tyre - are they safe or merely convenient for manufacturers?