Unicar.

The Unicar was manufactured in 1956 by S.E. Opperman of Borehamwood, UK. Designed by Laurie Bond the vehicle was powered with a 225cc Excelsior engine or a 328cc British Anzani engine that was mounted to the rear of the vehicle. A sports version was also introduced in 1958 that was powered by a Styr-Puch 500 engine and gave the fiberglass bodied vehicle a top speed of 75mph.  Production ceased in 1958.

The 1956 Unicar. (Also known as the Opperman Motorcart).