The 2007 Mercedes CLS class redefines the four-seat, four-door coupe, raising the form factor to the level of refined elegance. The CLS550 features a 382 hp, 5.5 liter, 32-valve V8 engine with a seven-speed automatic transmission that still allows some gear shifting control. (MSRP $67,675) The CLS63 AMG is outfitted with an AMG-built, 507 hp, 6.3 liter, 32-valve V8 engine with built-in overdrive, and has a seven-speed automatic transmission with AMG "SpeedShift" programming and shift paddle manual mode for similar driver-directed gear selection. (MSRP $92,975)

Amenities on the CLS550 include a multi-function steering wheel with controls for the basic functions of the audio system and phone (when so equipped.) Automatic ambient lighting, four reading lights, a full-length center console, automatic climate control with four separate zones, 10-way adjustable front seats, and leather upholstery are all standard.

The CLS63 has sports seats wand an ergonomic sport steering wheel, chrome door sill plates, and adds manual shift controls to the steering wheel. Both models feature the modular "COMAND" Cockpit Management and Dats system, which integrates an AM/FM stereo/weatherband radio, a single-CD player and a large color LCD. (A six-disc CD changer and phone kit are optional.) The standard digital surround-sound system on the 2007 Mercedes CLS Class cars includes 12 speakers, a subwoofer, a 7.1-channel amplifier, digital volume control.