The Swimcar Spider is an impressively-designed 4-wheeler concept that’s intended to traverse rough terrain. Each wheel uses its own electric hub motor and is suspended to a spider-like limb that attaches to the Spider’s body. This design results in a vehicle that leans into fast turns like a motorcycle, can go up or down a 70-percent gradient, ride diagonally through ditches, and ride across virtually any other rough terrain you could imagine. It’s resistant to tipping over, as well, and is completely emission-free. It’s a brilliant recreational vehicle concept that’s truly imaginative and looks fun to drive. [Purchase]