The 2011 Mercedes-Benz CL-Class, part of the third-generation C216 model line, is a grand tourer coupe defined by its blend of performance and luxury. Two trims are available, the CL550 4Matic and the higher-performance CL63 AMG. The CL550 comes with a 4.7-liter biturbo V8, delivering 429 hp. The CL63 AMG, equipped with a 5.5-liter V8 biturbo engine, churns out an impressive 536 hp. Both models feature a 7-speed automatic transmission and, in the case of the CL550, Mercedes' 4Matic all-wheel drive system. Safety is handled by features such as the Pre-Safe system, attention assist, and Mercedes-Benz's Distronic Plus adaptive cruise control. For entertainment, a COMAND system with navigation and a Harman Kardon surround-sound system come standard. The model year marked a mid-cycle refresh with updated exterior styling and engine options.