Hmm... GM shows Chevy plug-in concept describes a concept car shown by GM. It's a hybrid electric vehicle built in a different configuration than the previous hybrid cars. In this one the motor is used only as a generator to charge the battery pack. The drive motor is an electric drivetrain.
They're claiming a 40 mile range without recharging ... on suburban streets. So that range is not highway range, but at 35 miles/hr or so.
The electric motor runs at 121 kilowatts.
The battery pack charges either from plugging in, or from the gas engine.