There's no pedals on the Impossible, instead, a brushless electric motor (currently in development) will propel you through the streets. Equipped with 10 2,900mAh batteries, the current model apparently has a range limit of 15.6 miles, unless you kick it into turbo mode, at which point it'll rocket up to 12.4mph for 45 minutes. Unfortunately, at least this one Engadget editor will have to take a pass on backing the device, since it comes with an upper weight limit of 180 pounds, although we're not sure if the quirky carbon-fiber frame would even be able to sustain someone of that girth. Since the vehicle doesn't come with suspension, we'd imagine it'd also be a bit of a pain if you don't live in a city where the pavements are perfectly smooth. Still, it's a curious piece of hardware, and we can't wait to see it in the flesh when it arrives in August of next year - if you're interested in taking the risk and backing it now, it'll set you back $530 unless you can bag an early-bird deal.