The Fisker Karma should have more power than most hybrids on the market, from its gas engine alone. While details about the electric drive motor are still unknown, the ‘range extender’ to recharge the batteries will be GM’s 2.0 liter turbo four-cylinder.
This news comes as a surprise as the gasoline engine will act purely as a generator to recharge the batteries. It may be a good move though as the engine returns decent mpg and will recharge the batteries quickly. This will help return the Karma to pure electric operation. There shouldn’t be any performance penalty as electric motors make full torque at zero rpm and the 2.0 liter is a fairly light engine.