Chevrolet Volt might not come in 2010

"2010 would be great, but (we) can’t guarantee that at this time. We’ll keep you posted regularly on our progress."

Whether the Volt becomes reality hinges on GM’s ability to develop a lithium-ion battery capable of powering a mass-market car. A battery would drive the Volt’s powertrain, and an onboard fueling system would recharge the battery while on the road. GM is working on a fueling system, which would be called E-Flex, that could run on gasoline, diesel fuel and hydrogen fuel cells.