Gobstopper. Doesn’t sound all that menacing does it? But this car might make you rethink your definitions. The mightily be-winged 780bhp weapon is now a Festival of Speed veteran, having set a blistering shootout-winning 44.9-second run last year. This year Olly Clark and his ultimate Impreza returned to brave the intermittent showers for a crack at double-glory.