The Voisin C30 was an automobile which was made between 1937 and 1938.

The car was launched in the company's twilight years and is often seen as not a real Voisin. This is mainly because it was equipped with an American engine.

Every other element of the C30 was personally designed by Gabriel Voisin. It's advanced platform chassis was heavily flocked for acoustic insulation and had a body with well-centred weight distribution. The engine of course was a 3,560 cc Graham flathead six cylinder unit, which at least shared some of the smoothness, flexibility and mechanical silence for which Voisin engines. Somewhat underpowered for a car of its weight, the normally aspirated unit was later available with a centrifugal supercharger which raised the output to 110 bhp (as opposed to 80 for the standard car).

Two body styles were offered on the C30 chassis: the factory-bodied saloon and a more fashionable 4-seater cabriolet built by Dubos.

Sales, however, were disappointing, with only 60 C30s built.


In an ultimate attempt to revive the brand, the Société Auxiliaire des Automobiles Voisin introduced a new model strictly derived of the C30 during the 1938 Motor Show. It was a 2-door coupé on a shortened chassis.

It kept the prominent engine hood of C30. The car also has a ridiculously small rear window, triple window vipers and complete dashboard.

Fitted with the C30 engine, it was claimed the car would reach 145 kph.