Overview: Tom heads to an auction of Bernie Ecclestone’s private car collection. Jonny takes a Citroën C-Crosser and a Citroën 2CV to a field to see how the two fair offroad. Jason takes Mercedes-Benz CLK 53 AMG Black Series to Silverstone. Tiff teaches TV chef Heston Blumenthal how to powerslide his BMW M5. Shootout: Vicki puts the Lotus Exige S against the Caterham CSR at Anglesey.