The 2004 Mercedes-Benz S Class consists of large Sedans designed with luxurious styling and spaciousness in mind. The line-up is represented by the S430, the S500, the S55 and the S600. Engines range from the 275 horsepower V8 in the S430 to the supercharged 493 horsepower V8 in the S55 or the 493 horsepower supercharged V12 in the S600. For 2004, the S430 and the S500 come equipped with an industry-first 7-speed automatic transmission – the S55 and the S600 feature a 5-speed automatic. The S Class comes equipped with a long list of safety equipment and features.