AC Petite: AC’s three-wheeled microcar of the 1950s

AC

AC Petite: AC’s three-wheeled microcar of the 1950s

The AC Petite is a three-wheeled British microcar built by AC Cars between 1952 and 1957. It had a rear-mounted 350 cc Villiers single-cylinder two-stroke engine, a single bench seat for two adults, and was said to be capable of 40 mph and 60 to 70 miles per imperial gallon. Approximately 4,000 were built.

AC Petite at a glance

AC Petite key facts
Maker AC Cars, Thames Ditton, Surrey
Production 1952–1957
Type three-wheeled microcar
Engine 350 cc Villiers single-cylinder two-stroke, rear-mounted
Seats single bench seat for two adults
Top speed about 40 mph (64 km/h)
Economy 60–70 miles per imperial gallon
Mark I (1952–1955) Villiers 27B engine; 18-inch rear and 8-inch front wheels
Mark II (1955) Villiers 28B engine; 12-inch wheels front and rear
Built about 4,000

This page is based on English Wikipedia only and the source is short, so the article is shorter than usual and its figures could not be checked against a second source.

History of the AC Petite

Design

The Petite was AC’s answer to the small economy cars of the early 1950s. It was a three-wheeler with the engine at the rear, a single bench seat for two adults, and a claimed top speed of 40 mph. Between 1952 and 1955 it used a Villiers 27B engine and two very different wheel sizes: 18-inch spoked wheels at the rear and only 8-inch wheels at the front.

Mark II

In 1955 AC launched the Mark II, with minor changes to the exterior trim, a slightly more powerful Villiers 28B engine and 12-inch wheels front and rear. Production continued until 1957, when approximately 4,000 Petites had been built.

Design and features

  • Three wheels: a light microcar layout with a single front wheel and two at the rear.
  • Villiers two-stroke: a simple 350 cc single-cylinder engine mounted at the back.
  • Economy: AC claimed 60 to 70 miles per imperial gallon.
  • Two seats: a single bench seat for two adults.

AC Petite versions

  • Mark I (1952–1955): Villiers 27B engine, 18-inch rear wheels and 8-inch front wheel.
  • Mark II (1955–1957): Villiers 28B engine, revised trim and 12-inch wheels all round.

The Petite was AC’s smallest model; the company’s larger six-cylinder cars included the AC 2-Litre and the Greyhound. More cars are in the AC collection.

Video: AC Petite engine wakes after decades.

Video on YouTube.

Sources