This is the original advert for the, Sinclair C5 electric ''car''. The Sinclair C5 was a battery electric car invented by Sir Clive Sinclair in the Uk on 10 January 1985. It had a top speed of 15 miles per hour. It cost $399 plus $29 for delivery. It only sold 12,000 units, and was a commercial disaster. What do you think of this?