Tiff Needell and Jason Plato pit the new BMW Z4 against the Porsche Boxster, and Tim Shaw examines the Government's car-scrappage scheme. Comedian Ross Noble receives a day of trial-bike tuition from motorcyclist Dougie Lampkin, the team celebrates the joint birthday of the original Mini and the film The Italian Job, and Tom Ford gets behind the wheel of the Peugeot 308 CC.