Well, that one depends. Although prices haven't been officially announced, rumor has it that a Chevy Volt will cost somewhere in the neighborhood of $40,000. That's a hefty sum, to be sure, especially when a Toyota Prius costs around $22,000 and the recently announced Honda Insight will retail for less than $19,000. However, Chevrolet estimates that even if you recharge the Chevy Volt at peak hours, it will cost about 1/6 as much to run as a conventional car, saving roughly $1,500 per year. Over five years, that's $7,500.