During a recent interview the boss of AMG, Ola Kaellenius, revealed a few details about the brand’s upcoming models including its most important launch of next year, the 2012 Mercedes-Benz SLS AMG Roadster.

Speaking with Germany’s Auto Motor und Sport, Kaellenius revealed that the Roadster version of the SLS AMG would make its world debut at the 2011 Frankfurt Auto Show, which takes place next September.

He also confirmed that the AMG version of the new 2012 Mercedes-Benz SLK would make its debut next year, complete with fuel saving cylinder deactivation for its 5.5-liter V-8. Also going on sale next year will be the new 2012 Mercedes-Benz CLS63 AMG, which we saw back at last month’s 2010 Los Angeles Auto Show.

As for the new SLS AMG Roadster, the car is expected to ditch the naturally aspirated 6.2-liter V-8 used in the current gullwing model and go with the latest twin-turbocharged 5.5-liter V-8 engine that we’ve started to see filter across AMG’s fleet. The new unit develops up to 571 horsepower and 664 pound-feet of torque. By comparison, the SLS AMG’s 6.2-liter V-8 develops the same 571 horsepower rating but ‘only’ 479 pound-feet of torque.

For more details on the 2012 Mercedes-Benz SLS AMG Roadster, check out our previous story by clicking here.

[Auto Motor und Sport via Mercedes-Benz Passion]