Julien is a former French automobile manufacturer. The Paris based Société des Études Automobiles M. A. Julien presented its first prototype in 1946 and automaking activities came to an end in 1949, probably without any of the developments having progressed beyond the prototype stage.
The company presented its first prototypes at the Paris Motor Show in . These were the Julien MM5 and the Julien VUP. During the following twelve months Julien negotiated successfully with the government, who controlled the necessary materials supplies, for permission to put the MM5 into production.
The open-topped two-seater car featured a single-cylinder two-stroke engine of 310cc which for 1947 was increased to 325cc with a maximum power output of 10hp.[1] The rear track was strikingly narrower than that at the front, but the car did have four wheels and power was delivered via a three-speed manual transmission to the rear axle. The 1840mm wheelbase supported an overall body length of 2870mm and the weight of just over 300kg (700lb) allowed for an acceptable performance level.[1]
For 1949 a Julien MM7 appeared with engine capacity increased to 368cc and power to 13hp. was the company's last year as an aspiring auto-maker.