Days after the official unveiling of the new BMW M6 Convertible, the Stuttgart-based automaker and BMW’s classic competitor, Mercedes-Benz, reveals their own interpretation of a high-end super sporty cabriolet. The new SL63 AMG Roadster will make its debut next month at the Geneva Motor Show.

Based on the SL-Class that debuted at the 2012 Detroit Auto Show, the SL63 AMG packs a twin-turbo 5.5 liter V8 producing 529 horsepower (557 with AMG Performance Package) and 664 lb-ft of torque. The new SL63 AMG can rocket from 0-62 mph in 4.3 seconds (4.2 with the optional AMG Performance Package) while returning 30 percent better fuel economy. Top speed rises to 186 mph.

BMW M6 Cabrio F12 Mercedes SL 63 AMG 2012 Bild Vergleich Front 655x218BMW M6 Cabrio F12 Mercedes SL 63 AMG 2012 Bild Vergleich Heck 655x217

The new M6 is powered by a 4.4-liter unit with an output of 560 hp at 5,750 – 7,000 rpm, and maximum torque of 500 lb-ft (680 Nm) on tap between 1,500 and 5,750 rpm. 0 to 62 mph is achieved in 4.3 seconds while the spring to 124 mph (200km/h) takes only 13.1 seconds. Top speed is electronically limited to 155 mph (250 km/h). The M Drivers Package will take the top speed to 190 mph.

The SL63 AMG receives a redesigned apron with a large airdam, the typical AMG radiator grille, LED daytime running lights, side sills, rear lip spoiler, diffuser-style rear apron and chromed twin tailpipes.

Inside, Mercedes’s keeps the level of luxuryy at a high level with carbon-fiber trim, illuminated sills, ambient lighting and an IWC analog clock. Single or two-tone Nappa leather further enhances the new interior.

As always, we put together a visual comparison to showcase the two competitors.

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[Photos: BimmerToday]