VW Plug-in Hybrid

I'll take one. [Link]

VW boss Martin Winterkorn says gas and diesel engines will be around for a long time to come, but "the future belongs to all-electric cars." The automaker is staking a claim to that future with a plug-in hybrid drivetrain it calls Twin Drive. It will debut in a Golf fitted with a 122-horsepower diesel engine and an 82-horsepower electric motor.

"While the e-motor on a typical hybrid model just supplements the combustion engine, the exact opposite is true on Twin Drive," Winterkorn said during the car's unveiling in Berlin. "Here the diesel or gasoline engine supplements the e-motor."

Start-stop technology will save power and regenerative braking will help generate it. VW says the car will use lithium-ion batteries and have an all-electric range of 31 miles. The company recently signed a deal with Sanyo to develop li-ion batteries; the electronics company plans to begin production next year and says it will spend $769 million on the effort during the next seven years.