In "Powered Up", Jeremy Clarkson heads to the south of France, where he puts cars to the test on the Circuit Paul Ricard and on the open road. Among the cars featured are the Ferrari FF and the 458, McLaren's MP4-12C, the latest Nissan GTR, the Porsche GT2 RS, the Lamborghini Performante and the BMW 1M. The Stig and racing driver Karun Chandhok are on hand to help put these vehicles to the test, but which one will Jeremy choose as his favourite car of the year?