Standard CL equipment is comprehensive. The seats, doors and instrument panel are all leather covered; burled walnut wood trim is used liberally. The front seats are 14-way adjustable and heated, and have a three-setting memory capability that also sets the electrically telescoping-and-tilting steering wheel and side mirrors.

The standard audio system is a Harman/Kardon Logic7 5.1 Digital unit with 11 speakers and a 6CD in-dash changer (with memory card slot). Sirius satellite radio is standard. There's a power sunroof overhead and a power rear-window sunblind in the rear parcel shelf. Doors have power assist closing mechanisms, and the trunk is electrically powered.

The Mercedes COMAND system, a centralized computer interface with a dash-mounted flat panel screen, is standard. It enables access to many of the car's accessories including GPS navigation, phone, climate controls and other customizable features (exterior courtesy lights, seat settings and voice command setup). Bi-Xenon headlights are standard, as is Parktronic, a distance sensing parking aid. All CLs are equipped with ABC active suspension; it utilizes electro hydraulic cylinders to control body roll and some damping functions.

The Premium I package ($1950) includes heated and ventilated front seats and a keyless entry system. Premium II ($5650) adds multi-adjustable front seats fitted with pneumatic chambers that adjust cushion firmness and lumbar support. Also part of the package are a night vision system with an in-dash screen, and a rear backup camera. An AMG body kit ($5650) adds special aerodynamic pieces and larger 19-inch wheels (18-inch wheels are standard).

Other options include Distronic Plus distance monitoring cruise control ($2850); a heated steering wheel ($450); 19-inch multi-spoke wheels ($1200); special chrome 18-inch wheels ($1000); and an iPod integration kit ($425).

All options packages are already standard on the CL600 ($144,200). It's only available extras are the iPod kit ($425) and 19-inch multi-spoke wheels ($1200).

Safety features on all CLs include a pair of two-stage front air bags, a driver's side knee air bag; two front side airbags; two rear side airbags; and side head-curtain airbags for front and rear passengers. There are seatbelt pre-tensioners for the front passengers' belts. Windows close automatically in a crash, and a sunroof closing feature activates in rollovers. Also standard: ABS with electronic brake-force distribution and automatic wet-weather drying, dynamic stability control, traction control, and Distronic cruise control. Optional safety equipment includes Distronic Plus distance sensing cruise control.