Supercharged V8 plays V12 plays naturally aspirated V8. The Jaguar XKR-S GT is the most potent version of its flagship XK coupe ever, and no more than 50 will ever be built. The Aston Martin V12 Vantage S is the ultimate incarnation of the firm's beautiful Vantage.

But are either powerful or delicate enough to unseat our favourite super coupe, the Mercedes C63 AMG Black Series?