This week, Matt, Chris and Eddie Jordan take music stars Sharleen Spiteri, Seasick Steve and Tinie Tempah on the ultimate SUV test in wildest South Africa.

Back at the track, F1 superstar Jenson Button gives Chris a ride in the McLaren 675LT, while actor Damian Lewis is this week's Star in a Rallycross Car.

Chris Harris and the £2m Bugatti Chiron attempt to cross the Arabian peninsula faster than Matt LeBlanc and a roster of money-no-object transport solutions.

Back in Britain, Rory Reid constructs a life-size arcade game to test the Renault Twingo GT and its city car rivals, while rap star Tinie Tempah tackles the Top Gear track in the Reasonably Fast Toyota GT86.