The Sima-Violet is prominent on the list of ugly cars. French cycle cars were never very beautiful to look at, but the cars by Sima-Violet are downright ugly. The factory on the Rue Lazare in Paris manufactured the small racing cars between 1924 and 1929. The model was powered by an air-cooled, two-cylinder, two-stroke engine. The small racings cars were very fast though.
The relatively light car actually did not consist of much more than a chassis with an engine and a seat and the 496 cc engine delivered sufficient horsepower. In 1927, Sima-Violet finished in third place in the Boulogne Grand Prix. The make was justifiably proud as first and second place were taken by Bugatti. The Sima-Violet was powered by a 1484 cc, four-cylinder, two-stroke, boxer engine equipped with a Cozette compressor.
The complete encyclopedia of Vintage Cars - Rob de la Rive Box