You may have seen these ads on tv recently, which have been frustratingly vague. Well, today's the 11th, so it's out. GM has just introduced it's Volt, a rechargeable electric car that gets 230 mpg in the city. It runs off of a battery for the first forty miles, then a small combustible engine kicks in for the next 300. The Volt gets more than four times it's biggest competition, the Toyota Prius. Check out the MSNBC article covering the press conference: msnbc.com/gmvolt.