The most famous Autobianchi models include the A112 released in 1969, a small hatchback very popular in Italy for racing, and which ceased production in 1986; as well as the Y10, which was the first car to use Fiat's new FIRE (Fully Integrated Robotised Engine).

Even though a new, modern facility was constructed in Desio after the war, economic conditions forced Giuseppe not to resume passenger car production, but rather to focus on bicycles, motorcycles and commercial vehicles.

Bianchi's general manager, Ferruccio Quintavalle, wanted to take advantage of the company's extensive experience in manufacturing cars and ordered the preparation of studies and prototypes of possible new models.

Therefore, Bianchi turned to large industrial groups Fiat and Pirelli with a proposal to form a new company to produce automobiles.

Thus, the Autobianchi company was born, with the agreement signed by the three parties on 11 January 1955, and share capital of 3 million lira, 33% of which belonged to the Bianchi family.

It was seeking to capture the premium niche of the small car market, at that time occupied by coachbuilders such as Moretti and Vignale, who were building their models on Fiat chassis.

Bianchi, was assigned the duties of preparing the bodies and assembling complete vehicles; a step towards their desired return to full passenger car production.

[3][4][5][6] The first Bianchina rolled from the production lines in Desio on September 11, 1957, and had the unusual body style of a two-door landaulet, called "Trasformabile".

It was Fiat's first attempt at a front-wheel drive car with a transverse engine, a configuration popularized by the British Mini and allowing for very compact and efficient utilization of the body space.

Designed by Fiat's technical director, Dante Giacosa, it was launched under the Autobianchi brand to test market reaction to the new concept.

The Primula's particular configuration of front wheel drive with a transverse engine, but with a gearbox on the end of the engine and unequal length drive shafts, rather than a gearbox in the sump like the Mini, became universal; as did its use of conventional steel suspension in almost all other cars with the exception of Citroen – usually MacPherson struts at the front and a "dead" rear axle.

[7] Facing a crisis in the motorcycle market, Bianchi was forced to sell its share in Autobianchi and the company was finally fully integrated into Fiat S.p.A. in 1968.

[9] The A111 was derived from Primula mechanicals, but much bigger and more spacious, marking the first (and only) entry of the brand into the small family car class.