Designer and racing-driver Dragutin Esser then created two cars of 2025 cc and 2253 cc which were built under license from Stoewer. The first "true" Mathis model (8/20 PS) was put on the market in 1910, however the first real success came just before World War I with two smaller models: Babylette had a 1.1 L engine and Baby had a 1.3 L engine. There was also a Mathis-Knight model.
During World War I, Mathis was sent by the German government (Alsace was then part of Germany) to Switzerland to buy tyres and after one of these trips he went to France and remained there. After the war Alsace became part of France and he was able to return to his factory.
After the war, the firm's production increased quickly and soon became No.4 in France making more than 20,000 cars in 1927. Mathis attempted to compete with Citroën. The SB model of 1921 was followed by a six-cylinder model (1188 cc) in 1923 and an eight-cylinder in 1925. From 1927, Mathis followed a one-model policy. MY has side-valve four cylinder engine (1.2 L). Not surprisingly, the next year saw the Emysix, with a 2288 cc six-cylinder. In 1930 there was an unsuccessful attempt to co-operate with William Crapo Durant (the founder of General Motors in 1908). Their ambitious plan was to make 100,000 cars in Durant's Lansing, Michigan plant. However, Durant ran out of money before production could begin, so Mathis stayed in France.
A short-lived model named FOH in 1931 had a 3 Litre straight-eight cylinder engine. More modern and successful was the 1445 cc Emyquattre in 1933, which possessed a synchromesh gearbox, hydraulic brakes and independent front suspension. Emyhuit (obviously, an 8-cylinder) came too late to prevent Mathis from a fast decline.
Ford Motor Company was quickly expanding its European production, with a modified Ford Y model named Tracford, and in 1934 a joint venture of Ford and Mathis emerged (SA Française Matford, Strasbourg). Matford, which copied the style of contemporary British Ford models, soon became one of the biggest competitors - the original Mathis factory closed down in 1935. The last models featured a V-shaped windscreen. Matford ceased production in 1939.
Émile Mathis regained his factory just before World War II. Afterwards, the plant of Matford became Ford France (the Ford trademark was used). Mathis tried to find new projects: there was a 700 cc three-wheeler (VL333) in 1945 and a front-wheel drive prototype having a flat-six (2.8 L), with a "panoramic" style windscreen. These post-war projects failed to reach success and the factory was only kept going by making engines for light aircraft and components for Renault. Mathis ceased as a company in 1950.
His plant was eventually bought by Citroën in 1954. Émile Mathis died in 1956.