GM i-Car plug-in hybrid vehicle set to challenge Toyota?

According to unofficial sources cited by the Detroit News, GM is ramping up to challenge Toyota's lead in hybrid vehicles. So, are they serious?

Last year, Toyota sold more than 235,000 hybrid vehicles. GM, on the other hand, has yet to sell one single full hybrid. Sure GM offers a few mild hybrids, but mild hybrids are not going to challenge Toyota's hybrid vehicle sales lead.

Still, GM might have a secret weapon, the I-car. (Full Story)