The gasoline-electric E400 Hybrid is intended initially for the U.S. market and eventually will be sold in China and Japan. The diesel-electric E300 Bluetec Hybrid will go on sale first in Europe, and will be available as a sedan and a wagon.
The heart of both models is what Mercedes-Benz calls the "intelligent modular hybrid concept," which features a lithium-ion battery pack and a 20kW electric motor that produces 184 pound-feet of torque. The hybrid powertrain can accommodate either a diesel or gasoline engine, and includes a stop/start system to enhance fuel economy and reduce emissions, as well as regenerative braking to help keep the battery charged.
The E400 Hybrid mates the electric motor to a 3.5-liter V6 gasoline engine rated at 302 horsepower and 273 lb-ft of torque. The combination should achieve projected EPA fuel economy of 24 mpg in city driving and 31 mpg on the highway, compared with 20/30 for the standard 2012 Mercedes-Benz E350 sedan.
The E300 Bluetec Hybrid couples the electric motor with a 3.0-liter V6 turbodiesel that makes 201 hp and 369 lb-ft. Combined fuel economy on the European test cycle is projected at 56 mpg.
Mercedes-Benz said it will be the first premium manufacturer to offer a diesel-hybrid production model in Europe.
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