The car can travel 60 miles on batteries alone before the engine kicks in – and since you can recharge it by plugging it in at night, that means if you drive less than 60 miles a day, you’ll never need to buy gas. And in a 93 mile drive starting with full batteries and a full tank, you would effectively get 124 miles per gallon. (Yes, that electricity from your wall probably doesn’t come carbon-free, but even if 100% of it comes from coal-fired plants, your overall emissions will still be far less than a conventional gas engine.)

Sadly, this car exists only in a test version, and may never reach production. However, GM is using the same basic design in their Volt hybrid car, with just slightly lower specs, which is entering production and should be available by 2010.