AMG still hiding the coupe's wide body kit under some heavy camouflage. The next C63 Black Series to be updated with the new 5.5 liter biturbo V8 with 571 PS (420 kW / 563 bhp) and 900 Nm (664 lb-ft) of torque.

Here is a set of spy shots of the upcoming 2012 Mercedes-Benz C63 AMG Black Series Coupe testing on the Nürburgring.

The prototype spotted here is a coupe that is still heavily camouflaged with AMG doing their best to hide the coupe's wide body kit.

As for what beats wildly underneath that bonnet, we're expecting the next C63 Black Series to be updated with the new 5.5 liter biturbo V8 with 571 PS (420 kW / 563 bhp) and 900 Nm (664 lb-ft) of torque coupled to the seven-speed Speedshift gearbox.

The 2012 C63 AMG Black Series Coupe is expected to debut after the introduction of the sedan variant later this year.

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