Highlights from the 2007 series of Top Gear. Who can travel across London the fastest? Is it Jeremy in a powerboat, James in a car, Richard on a bike or the Stig on public transport? James test drives the world's most luxurious car: the Rolls Royce Phantom Drophead Coupe. Jeremy tests the insanely fast Ascari A10. There are two 'stars in a reasonably priced car': Simon Cowell and rugby legend Lawrence Dallaglio.