The  yet to be shown 2011 CLS63 AMG model (the standard CLS is pictured  above), which is based on the second generation of Merc's so-called "four-door coupe",  will be powered by a new 5.5-liter twin-turbocharged V8 engine matched  to a MCT (multi-clutch technology) transmission. In base form, the  biturbo V8 churns out 518 horsepower and 516 lb.-ft. of torque, but  there's also an optional Performance Package that increases output to  550 hp and 590 lb.-ft. of torque. As  for Mercedes' F-CELL model, it's essentially an electric B-Class that  makes its own power on board as the hydrogen and air react without  combustion in the fuel cell, producing current to run the 136-horsepower  electric motor. The F-CELL is also equipped with a 35-kilowatt  lithium-ion battery that stores recovered braking energy. According  to the German automaker, the hydrogen gas is stored in 10,150-psi tanks  that can be refueled in only three minutes, and offers a driving range  of about 230 miles. Beginning  in Southern California, Mercedes will offer the new F-CELL car through a  special lease program in markets with available and growing networks of  hydrogen refueling stations. *Non-AMG 2011 Mercedes-Benz CLS shown in photos
Mercedes-Benz has confirmed the world debut of its next-generation CLS63 AMG sports sedan at the 2010 Los Angeles Auto Show,  open to the public November 19-28. The German maker also revealed that  it will make an announcement on the U.S. rollout of its fuel  cell-powered F-CELL car.
