In this episode of Fifth Gear Tiff Needell and rally driver Mark Higgins set Olympic Skeleton Bob gold medallist Amy Williams and World Pentathlete champion Samantha Murray a track challenge. Expect car damage and the closest ever finish to a Fifth Gear celebrity contest. Vicki Butler-Henderson drives Aston Martin’s most powerful Vantage and Porsche’s most powerful 911 to find out which is quickest around a track. The Fifth Gear team test BMW’s first ever front wheel drive car, the Active Tourer. Tiff goes off-road in Fiat’s little Panda Cross, and finds out if it can keep up with the king of 4x4s, the Land Rover Defender. And Vicki looks at three UK built Restmods, classic cars you can use all year round.