Jeremy, James and Richard take the new BMW M3, Mercedes C63 AMG and Audi RS4 down to Spain for a thorough test of performance, handling and which makes you look least like a hair-gelled weasel. Back on home turf, James tests the brand-new Jaguar XF and Richard asks whatever happened to that ultimate symbol of 1960s grooviness, the beach buggy. Doctor Who star David Tennant swaps driving the TARDIS for a Reasonably Priced Car, and Top Gear makes the ultimate Christmas present by turning a G-Wiz into a high-performance radio-controlled car.