Competes with: Audi A8 TDI, BMW 7 Series ActiveHybrid, Lexus LS 600h
Looks like: An S-Class with enough rear signage for Mercedes' lettering supplier to hire an extra shift
Drivetrain: 436-hp (combined), turbocharged 3.0-liter V-6 and electric motor with seven-speed automatic transmission; rear-wheel drive
Hits dealerships: Spring 2015, California only
Witness the reprisal of Mercedes-Benz's S-Class hybrid, this time in the form of a plug-in S550. The S550 Plug-in Hybrid teams a turbocharged V-6 with an electric motor that runs off a battery you can plug in to recharge. Whereas its predecessor, the 2010-2013 S400 Hybrid, was a plug-free "mild" hybrid that couldn't actually travel on electric power alone, Mercedes says its successor can do that for up to 20 miles.
Related: More Hybrids/Alternative Fuels News
Typical of Mercedes' flagship sedan, the S550 plug-in electric vehicle boasts a kitchen sink's worth of other features. Among them are haptic gas-pedal feedback and drivetrain logic that purportedly adapts its efficiency strategy to the road and traffic around you.