Life in the Fast Lane: The Johnson Guide to CarsHe comes, he sees, he plays with the gadgets Boris Johnson has been behind the wheel of some of the worlds fastest, most luxurious cars. Hes taken the Jaguar XKR R for a spin around a posh public school; roared through Islington in the AC Cobra V8; and spent a weekend tearing through the lanes of Sussex in the splendour of the Mercedes S55 AMG. Now hes going to reveal exactly what it was like. Pondering the fundamental questions What does it feel like