Reviewers generally agree that the Mercedes S550 is the benchmark for luxury sedans. Editors say the S550 excels in offering all the prestige, comfort and technological features a luxury car owner would expect, and more. Its vast cabin is a cocoon of quietness, elegance and high-quality ambiance, reviews emphasize. Redesigned in 2007, the current S550 sedan continues with the new longer wheelbase and distinctive design. The big Benz's powertrain is a 382-hp V-8 engine matched with a seven-speed automatic transmission driving either the rear wheels or an optional AWD system, branded "4MATIC." Reviewers are surprised by the S-Class' quick acceleration and outstanding handling, often commenting that the Mercedes S550 drives like a much smaller sports sedan., , The Mercedes S550's interior design gets compliments for its refinement and quality materials, although many auto writers say the screen-based COMAND multi-function control system could be more intuitive and less complicated. Among the many features are, heated/ventilated seats with built-in massage function., , Equipment include: hands-free communication system, drivers information system, COMAND system, voice control system, and hard drive-based GPS navigation system. Safety features include tire pressure monitor, heated rain-sensing windshield wipers, trunk entrapment release, dual front airbags, front and rear head curtain airbags, and front and side impact airbags., , There are no known defects in this vehicle. There are no dings visible on the exterior of this vehicle. The vehicle engine runs very, very smooth. Well maintained exterior is extra clean. It is obvious that this vehicle has been garaged. The inside of this vehicle is smoke-free. Like new interior. The mileage is accurate. This vehicle has a clean shifting transmission. There are no records of any prior collision damage. There has been only one owner of this vehicle. The tires are in good shape and have about 75% of the tread life left., , The Kelly Blue Price Is: $55160