Plot: This week, Chris Harris is with the new BMW M2, Rory Reid retraces a historic journey against the clock, delivering the Jaguar F-type SVR to the Geneva Motor Show, and Chris Evans and Matt Le Blanc head to Dingle to see whether the new Rolls Royce Dawn can out-class its ancestor, a 1976 Cornishe. The Stars going head to head in the Rallycross Car are Absolutely Fabulous star Jennifer Saunders and Great British Bake Off's Paul Hollywood