Clarkson is on a mission to find his favourite car of the year, and among the contenders at the Circuit Paul Ricard in France, are a pair of Ferraris – the V12, 6.3 litre FF and the 458 – McLaren’s MP4-12C, the latest Nissan GTR, Porsche’s GT2 RS, the 570-horsepower Lamborghini Performante and the built-for-fun BMW 1M. The Stig is on hand along with Formula One star Karun Chand…