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.