The new version of the high-performance Roadster includes systematic lightweight construction, a boost in output and driving dynamics, and a 30 per cent improvement in fuel efficiency whilst achieving lower emissions.

Thanks to an all-aluminium bodyshell, similar to that of the SLS AMG super sports car, the vehicle weight has been reduced by 125 kilograms, with a kerb weight of 1845 kilograms and an output of 537 hp or 564 hp. A further boost in performance comes from an enhanced AMG sports suspension based on Active Body Control (ABC), new AMG speed-sensitive sports steering, the AMG high-performance compound brake system and the AMG SPEEDSHIFT MCT 7-speed sports transmission.

Ola Källenius, CEO at Mercedes-AMGGmbH: "The new SL 63 AMG is yet another masterpiece from Mercedes-AMG. Be it driving dynamics, lightweight construction or efficiency – the SL 63 AMG represents a giant leap forward. Following on from the SLS AMG Roadster and the SLK 55 AMG, it now makes our unrivalled roadster family practically complete."

The SL 63 AMG is available with a choice of two power outputs for the first time. The AMG 5.5-litre V8 'biturbo' (twin-turbocharged) engine delivers 537 hp and 800 Nm of torque.

The key data at a glance:

*With AMG Performance package **Electronically limited

The new Mercedes-Benz SL 63 AMG will be launched in late summer 2012. UK Specification and pricing are still to be confirmed.