The Harper Runabout is a three-wheeled motor vehicle designed by Robert Harper and manufactured from 1921 until 1926.
Peel Trident
The Peel Trident, designed by Cyril Cannell, was first produced by the Peel Engineering Co from 1965–1966, and reintroduced by Peel Engineering Ltd in 2011.
Powerdrive
Three-wheeled microcar produced from 1955 until 1957.
RW Kit Cars
RW Kit Cars Ltd. was an English manufacturer of kit cars, founded in 1983 by Roger Woolley.
Scoot-Mobile
Three-wheeled motor vehicle the prototype for which was produced in 1947. The body was a modified aircraft fuel tank, and the wheels also came from an aircraft.
Scott Sociable
British two-seat, three-wheeled automobile produced from 1921 to 1925 by the Scott Autocar Company Company, unusual for its offset front wheel.
Stimson Scorcher
Three-wheeled motor vehicle designed by Barry Stimson and first produced in the UK in 1976.
Stimson Sting
Three-wheeled motor vehicle designed by Barry Stimson, introduced into the UK in 2002, and continued in production until 2007.
Stimson Storm
Three-wheeled motor vehicle designed by Barry Stimson and offered for sale as a kit car.