New Car Review of the 2004 Mercedes-Benz S Class Full-Size Luxury Sedan.

Description: Full-Size Luxury Sedan
Base MSRP Range: $73,600 - $122,100
Invoice Price Range: $68,448 - $113,553

Full-size Mercedes sedans continue with four editions -- S430, S500, S600 and S55 AMG. In addition, there are 4Matic AWD versions for S430 and S500.

Powertrain enhancements come from a bi-turbo V12 for S600 ripped to 493 hp and a supercharged V8 in S55 AMG. The performance-geared AMG model also has redundant SpeedShift buttons mounted on the steering wheel, plus a racing-derived brake system. S430 uses a 4.0-liter Mercedes V8 at 275 hp, but S500 goes further with the single-cam 5.0-liter V8 cranked to 302 hp. Both engines also mate with the new seven-speed automatic transmission.

With fitted seats and touches of polished hardwoods and fine leather decorating the cabin, these stretched sedans envelop passengers in a staggering array of sophisticated controls and perks to make life in the fast lane not only comfortable but secure. Also, there are so many mechanical systems working latently for protection, including devices that stabilize forward movement and tire traction, smart brakes and adjustable suspensions, plus as many as eight air bags.

All S Class cars also stock the Mercedes PreSafe tool that instantly rigs the vehicle for an unavoidable impact by activating electric seat belt tensioners and passenger's front seat moving to optimum safety position and backrest raised, seat bottom lowered and seat shoved rearward.