A flagship among hybrids, the Mercedes Benz S400 Hybrid is powered by the first lithium battery designed specifically for automotive use. This opulent sedan connects a 20-horsepower electric motor with a 3.5-liter V6 and a seven-speed automatic transmission to better an S550's fuel economy by 30 percent.
The hybrid model contains the same interior room, luxury appointments and convenience features as other S Class models but is distinguished by unique 10-spoke wheels. With a base price that slightly undercuts that of the diesel-powered S350, this hybrid is the least expensive S Class available.
