The 2009 Mercedes-Benz SL-Class presents as a sophisticated, high-performance grand tourer characterized by advanced technology and a sumptuous interior. It is part of the fifth-generation, distinguished by its Vario-Roof hardtop convertible system. Available in four trims—SL550, SL600, SL63 AMG and SL65 AMG—each corresponding to a different powertrain. Engine options start with the SL550's powerful 382-hp 5.5-liter V8, all the way up to the SL65 AMG's incredible twin-turbo 6.0-liter V12 producing 604 horsepower. All engines are paired with a seven-speed automatic transmission, except for the SL65 AMG which includes a five-speed automatic capable of handling its immense torque. The SL-Class comes standard with the COMAND infotainment system featuring a 6.5-inch display, navigation, and Harman Kardon surround sound system. The car is also praised for its robustly engineered retractable hardtop, advanced safety features including Pre-Safe, and aesthetic appeal.