The Vespa 400 is a rear engined microcar, produced by ACMA in Fourchambault, France, from 1957 to 1961 to the designs of the Italian Piaggio company.

Three different versions were sold, the Luxe, Tourisme and GT.

The car made its high profile public debut on 26th September 1957 at a press presentation staged in Monaco.

The 400 was a two seater car with room behind the seats to accommodate luggage or two small children on an optional cushion.

The front seats were simple tubular metal frames with cloth upholstery on elastic 'springs' and between the seats were the handbrake, starter and choke.

The gear change was centrally floor mounted.

The rear hinged doors were coated on the inside with only a thin plastic lining attached to the metal door panel skin allowing valuable extra internal space.

The cabriolet fabric roof could be rolled back from the windscreen header rail to the top of the rear engine cover leaving conventional metal sides above the doors.

The 12 volt battery was l...