Overview: Jonny updates a Volkswagen Golf GTI Mk2 to more modern standards. Tim compares how different prices tires affect stopping distances. Tom drives the new Mk7 Ford Fiesta. Simon Pavey puts Tiff and Vicki through a series offroad motorcycle challenges. Jonny helps Light Welterweight boxer Ricky Hatton restore his Reliant Robin van used in the British sitcom Only Fools and Horses.