Alfa Romeo kicked off production of the 1900 in 1950, while the Alfetta was prepping for a two-year winning streak in F1. This was the groundwork for the creation of a Sports car prototype designed by Touring in 1952, which for its originality and flamboyant design would be known as the “Disco Volante” (Italian for "Flying Saucer").
For the first time after the war, in the 1950s, Alfa Romeo returned to making cars with four-cylinder engines and, even more importantly, adopting the new industrial approach of mass production. It was the moment of the 1900, a car created to reach out to a broader clientele than the gorgeous 6C 2500, which would stay in production a little longer.
These were also the two years of undisputed victories in the fledgling Formula 1 World Championship with the Alfetta winning race after race and contributed to consolidating the worldwide prestige of the Italian auto maker in a major fashion. So the decision was taken to make a prototype for competing in the two-litre Sports car class.
The 1900 was the first Alfa Romeo with monocoque body shell chassis but a tubular steel chassis with side rails was made for the C52 for racing. The originality of the car which led to it being named “Disco Volante” was the bodywork styled by Touring. The unusual Spider had bulging wings over the wheels which joined seamlessly with the streamline low-slung line, making it look like a sort of spaceship, hence its name. In-depth aerodynamic studies also included the analysis of side currents for the first time.