Name a car that can drive into a body of water (or human body) without causing much harm? No, this isn't an automotive riddle. It's the vision of Doug Ballard and his Spira foam car.
Spira – Click above for high-res image gallery
According to Lon Ballard, designer of the Spira, a three-wheeled floating car made from foam (yes, foam), "The Spira team hopes foam will revolutionize autos and motorcycles like the Crocs and flip-flops have revolutionized shoes and sandals." Whether or not that's a good thing may depend not only on your personal opinion of the polarizing footwear, but also on how well the vehicle is able to live up to its maker's lofty claims.