What’s best? The venerable Mercedes AMG 6.2-litre V8, or the new 5.5-litre biturbo V8? World record drifter and Autocar special correspondent, Mauro Calo, tests the Mercedes C63 AMG and SL63 AMG back-to-back on track to find out.
See high-res pics, specs and full reviews of all Mercedes-Benz models at http://www.autocar.co.uk/car-reviews/mercedes-benz