The Renault 9 was launched in October 1981 as a four-door saloon (in right-hand drive form for the UK market in March 1982), while the 11 was launched at the beginning of 1983 (in the UK from June that year) as a three or five door hatchback.

Both had been developed under the Renault code name L42, and were designed by Robert Opron.
Renault had begun the conception of the Renault 9 in 1977, as a "four metre" model (referring to its length) to fit between the Renault 5 and the Renault 14.

Opron conceived a traditional three box design to appeal to the traditional customer and avoid the poor reception that had met the Renault 14's styling.
Exhaustive consumer studies suggested that buyers rejected innovation, resulting in a rather nondescript design, albeit of modest elegance.

By the time the models entered production, Renault had assigned more than 500 people to the project, logging 14,500,000 hours of study and testing, constructing 44 prototypes, testing 130 engines, and test driving prototypes more than 2.2 million km.

Both cars were also more conservatively engineered, although they retained front wheel drive, Renault abandoned the Douvrin (or "Suitcase") transmission in sump engine which it had shared with Peugeot-Citroën in the Renault 14, in favour of its in-house power unit – the venerable C-type "Cléon" engine with an end on mounted transmission.
This mechanical layout, along with the 9/11's suspension design, was to become the basis of all small Renaults for the next 15 years or so.

The Renault 9 was awarded the 1982 European Car of the Year, while the Alliance appeared on Car and Driver's Ten Best list for 1983, and was the 1983 Motor Trend Car of the Year.
The well-equipped Renault 11 TSE Electronic of 1983 was the first car in its class to have a synthetically voiced trip computer, but only because Renault moved up its launch date by a few days in order to get ahead of Austin's Maestro Vanden Plas.

Although the 9 and 11 cars had different names and body styles, they were identical under the skin, and were intended to jointly replace the older Renault 14.
The 11 was also distinguishable from the 9 by its front end, which featured square twin headlights, which had been introduced on the North American Alliance.
The 9 also received this new front end in late 1985 for the 1986 model year.
Both models were facelifted one more time for the European market (Phase 2) with matching nose and interior upgrades for the model year of 1987.
At the Brussels Motor Show in January 1985 Renault showed the 11 Société, a light commercial version of the three-door hatchback with a cargo platform replacing the rear seat.

A version of the 9 was manufactured and marketed by American Motors Corporation (AMC) in the United States as the Renault Alliance and bearing a small AMC badge.
With 623,573 examples manufactured for model years 1982–1987, AMC offered the Alliance as a four-door sedan, two door sedan (with higher rear wheel arches than the four door) and as a convertible, beginning in 1984.

The Renault 9 and 11 continued in production in France until 1989, a year after the launch of the Renault 19.
However, production continued in other countries, with the end finally coming after nearly twenty years when production in Turkey was discontinued in 2000.
The Renault 9 was launched in October 1981 as a four-door saloon (in right-hand drive form for the UK market in March 1982), while the 11 was launched at the beginning of 1983 (in the UK from June that year) as a three or five door hatchback.
Both had been developed under the Renault code name L42, and were designed by Robert Opron. Renault had begun the conception of the Renault 9 in 1977, as a "four metre" model (referring to its length) to fit between the Renault 5 and the Renault 14.
Opron conceived a traditional three box design to appeal to the traditional customer and avoid the poor reception that had met the Renault 14's styling. Exhaustive consumer studies suggested that buyers rejected innovation, resulting in a rather nondescript design, albeit of modest elegance.
By the time the models entered production, Renault had assigned more than 500 people to the project, logging 14,500,000 hours of study and testing, constructing 44 prototypes, testing 130 engines, and test driving prototypes more than 2.2 million km.
Both cars were also more conservatively engineered, although they retained front wheel drive, Renault abandoned the Douvrin (or "Suitcase") transmission in sump engine which it had shared with Peugeot-Citroën in the Renault 14, in favour of its in-house power unit – the venerable C-type "Cléon" engine with an end on mounted transmission. This mechanical layout, along with the 9/11's suspension design, was to become the basis of all small Renaults for the next 15 years or so.
The Renault 9 was awarded the 1982 European Car of the Year, while the Alliance appeared on Car and Driver's Ten Best list for 1983, and was the 1983 Motor Trend Car of the Year. The well-equipped Renault 11 TSE Electronic of 1983 was the first car in its class to have a synthetically voiced trip computer, but only because Renault moved up its launch date by a few days in order to get ahead of Austin's Maestro Vanden Plas.
Although the 9 and 11 cars had different names and body styles, they were identical under the skin, and were intended to jointly replace the older Renault 14. The 11 was also distinguishable from the 9 by its front end, which featured square twin headlights, which had been introduced on the North American Alliance. The 9 also received this new front end in late 1985 for the 1986 model year. Both models were facelifted one more time for the European market (Phase 2) with matching nose and interior upgrades for the model year of 1987. At the Brussels Motor Show in January 1985 Renault showed the 11 Société, a light commercial version of the three-door hatchback with a cargo platform replacing the rear seat.
A version of the 9 was manufactured and marketed by American Motors Corporation (AMC) in the United States as the Renault Alliance and bearing a small AMC badge. With 623,573 examples manufactured for model years 1982–1987, AMC offered the Alliance as a four-door sedan, two door sedan (with higher rear wheel arches than the four door) and as a convertible, beginning in 1984.
The Renault 9 and 11 continued in production in France until 1989, a year after the launch of the Renault 19. However, production continued in other countries, with the end finally coming after nearly twenty years when production in Turkey was discontinued in 2000.
Renault 9 and 11