We've been looking at the spy photos and videos for the past year, and finally the SL 65 AMG Black Series is ready to debut next month at the Formula One German Grand Prix.

This isn't the first time we've seen a mystery AMG model hiding under a sheet, however, this time it's not much of a mystery. We've been looking at the spy photos and videos for the past year, and finally the SL 65 AMG Black Series is ready to debut next month at the Formula One German Grand Prix.

In addition to the SLK 55 and CLK 63, the SL 65 will be the third model added to the ultra exclusive Black Series. Combining racecar performance with a street legal road car, the SL 65 transgresses from domesticated sportsman to a ravaging beast.

Transformation towards Black Series will see a boost in performance of the 6.0-liter twin-turbo V12 up to 680hp – that's 76hp more than the standard SL 65 AMG Roadster and 30hp more than the Mercedes-McLaren SLR 722. According to Autoweek, an insider close to the development stated that engineers could have easily extracted 720hp out of this engine without any major modifications but decided to cap it.

The body gets trimmed down with the use of carbon fiber hood, fenders and roof which is fixed to the body. Removing the foldable roof and all of its associated hardware alleviates much dead weight and improves structural rigidity.

Capable of 220 mph but electronically limited to 186 mph (300 km/h), 0-60 mph should arrives in less than 4.0 seconds.

Only 350 units will be sold worldwide with deliveries commencing in 2009.

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