Guy Martin transforms a vintage and extremely rare East German Trabant, which proves to be the slowest vehicle he has ever worked on. With a little advice from one of Europe's top Trabant racers, Guy enters his creation in a historic classic car race at Brands Hatch.

Guy transforms a Land Rover Defender into an off-road racer capable of reaching 100mph. He puts his creation through its paces on a gruelling six-mile course in Wales, which he is determined to complete six laps of - but as torrential rain turns the roads to mud, simply staying on track is challenging enough.

Guy plans to create a racing version of a Piaggio Ape - the tiny three-wheeled vehicles that are ubiquitous across Italy. While these vehicles were never designed with motorsport in mind, he discovers a racing scene based around them has sprung up in Italy, with drivers customising their Apes with motorcycle engines and improved suspension.

The first episode comes from Sweden, where Guy transforms a Volvo estate to compete in the national motorsport of Folk Racing, a super-competitive form of rallycross, at the Vasteras Motorstadion.