Mercedes-Benz released the first official photographs today of its facelifted 2009-model SL roadster, the iconic sports car that's a direct descendant of the legendary 300SL 'Gullwing' of the 1950s. Mercedes engineers were able to wring out an extra 57 horsepower from the car's twin-turbo 6.0-liter V12 -- bringing total output to a monstrous 661 horsepower (20 more than the Mercedes-Benz SLR McLaren 722 Edition). But despite the bump in horsepower, the engine's torque rating remains the same at 738 lb-ft.
