The Sinclair Research C5 is a battery electric vehicle invented by Sir Clive Sinclair and launched by Sinclair Research in the United Kingdom on 10 January 1985. The vehicle is a battery-assisted tricycle steered by a handlebar beneath the driver’s knees. Powered operation is possible making it unnecessary for the driver to pedal. Its top speed of 15 miles per hour (24 km/h), is the fastest allowed in the UK without a driving licence. It sold for £399 plus £29 for delivery.

It became an object of media and popular ridicule during 1980s Britain and was a commercial disaster, selling only around 17,000 units, although according to Sinclair, it was “the best selling electric vehicle” until November 2011 when the Nissan Leaf had sold over 20,000 units.

Info gleaned from Wikipedia