This is an electric four-wheel drive, zero-emission vehicle called the E-Spider, and is made by a company called Pocket Classics. So it's not just some crazy whim of a guy or gal with too much time on their hands and some spare parts sitting around.
It's hand-built on an aluminium chassis and can supposedly cross a variety of terrain. That's thanks to an electric motor at each wheel, and independent suspension on the spider-like arms. The E-Spider can travel up and down inclines as steep as 70 degrees and still keep the driver vertical.
Pocket Classics claims it's suitable for recreation, agricultural, civilian and military applications. We think if you put long enough legs on it, it would be best used for getting through and over heavy traffic!