Here are the cleanest and best spy shots we've had on the upcoming 2012 Mercedes-Benz SLS AMG Roadster.

We see the prototype here dressed in black with a light-brown soft-top roof and the car appears ready to go.

The SLS AMG Roadster will drop, for obvious reasons, the gullwing doors of the SLS AMG but will share the same 6.3 liter (6,208cc) V8 with an output of 420 kW (571 PS / 563 bhp) and 650 Nm (479 lb-ft) of torque. The 0-100 km/h sprint comes in at a flat 4.0 seconds and top speed will be 309 km/h (192 mph).

We expected the 2012 Mercedes-Benz SLS AMG Roadster to debut at the Frankfurt motor show in September.

Gallery: 2012 Mercedes-Benz SLS AMG Roadster spied undisguised

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