The Alfa Romeo 1900 is an automobile produced by Italian car manufacturer Alfa Romeo from 1950 until 1959. Designed by Orazio Satta, it was an important development for Alfa Romeo as the marque's first car built entirely on a production line and first production car without a separate chassis. It was also the first Alfa Romeo offered with left-hand drive. The car was introduced at the 1950 Paris Motor Show. 1900 Berlina and Sprint The 1900 was offered in two-door or four-door models, with a new 1,884 cc (bore , stroke ), , 4-cylinder twin cam engine. It was spacious and simple, yet quick and sporty. The slogan Alfa used when selling it was "The family car that wins races", not-so-subtly alluding to the car's success in the Targa Florio, Stella Alpina, and other competitions. In 1951, the short wheelbase 1900C (c for corto (Italian for short)) version was introduced. It had a wheelbase of . In the same year the 1900 TI with a more powerful engine was introduced, it had bigger valves, a higher compression ratio and it was equipped with a double carburetor. Two years later the 1900 Super and 1900 TI Super (also 1900 Super Sprint) with 1975 cc engine were introduced (bore increased to , stroke unchanged). The TI Super had two double carburetors and . Transmission was a 4-speed manual on basic versions and 5-speed manual in Super Sprint version, the brakes were drum brakes. The 1900 had independent front suspension (double wishbones, coil springs and hydraulic telescopic shock absorbers) and live rear axle. The first of the 1900 came fitted with 6.00-16 Pirelli Stella Bianca, and then in 1952 moved to the radial 165HR400 Pirelli Cinturato. Production at the company's Milan plant continued until 1959: a total of 21,304 were built, including 17,390 of the saloons. The chassis was designed specifically to allow coachbuilders to rebody it, the most notable of which was the Zagato designed, 1900 Super Sprint coupé, with an improved engine and custom body design. The Alfa Romeo 1900M AR51 (or "Matta") is a four-wheel drive off-road vehicle based on the 1900-series. Coachbuilt versions Iginio Alessio, then general manager of Alfa Romeo, was concerned for the viability of the independent Italian Coachbuilding industry–the advent of the unibody chassis design was threatening to put the carrozzerie out of business. Alessio was also a personal friend of Gaetano Ponzoni co-owner of Carrozzeria