Sinclair Vehicles Sinclair Vehicles Sinclair Vehicles Ltd was a company formed in March 1983 by Sir Clive Sinclair as a focus for his work in the field of electric vehicles. The initial investment was £8.6m, which came from the proceeds of the sale of some of Sir Clive's shares in Sinclair Research. Barrie Wills, formerly of the DeLorean Motor Company, was appointed as managing director. The first (and only) Sinclair Vehicles production model was the single-seater Sinclair C5, launched on 10 January 1985. Larger models were planned, including the C15, a four-seater car capable of speeds of up to . The generally
Sinclair Executive Sinclair Executive The Sinclair Executive was the world's first "slimline" pocket calculator, and the first to be produced by Clive Sinclair's company Sinclair Radionics. Introduced in 1972, there were at least two different versions of the Sinclair Executive, with different keyboard markings, and another called the Sinclair Executive Memory, introduced in 1973. Its small size was made possible by pulsing the current to the Texas Instruments TMS1802 "calculator on a chip" integrated circuit, reducing the power consumption by a factor of more than 10. The Executive was highly successful, making of profit for Sinclair and winning a Design Council Award