The life cycle of the Alfa Romeo Arna extended from 1983 to 1987 in a single generation. Throughout this
period, the manufacturer rejected applying aesthetic restylings to the bodywork, opting to direct
investments toward mechanical and interior finish evolutions.
The vehicle reached the European market in late 1983 in the entry-level L (three-door) and SL (five-door)
configurations, equipped with the 63-horsepower 1.2-liter boxer engine. In parallel, there was the temporary
introduction of a version with a slightly sporty appeal, named the three-door TI, equipped with a 1.3-liter
engine and 71 horsepower.
In 1984, the range was improved with the arrival of high-performance variants. The 1.3-liter TI version was
updated with a new engine adopting two twin-choke Weber or Dell'Orto carburetors, raising power to 86
horsepower and allowing it to reach a top speed of 173 km/h. During the same period, the top-of-the-line
1.5-liter TI version was introduced, delivering 95 horsepower.
In November 1984, already as the 1985 lineup, Alfa Romeo implemented a series of technical and engineering
improvements. The base 1.2-liter engine was updated by replacing the single-barrel carburetor with a
vertical twin-choke Solex carburetor, which increased its power from 63 to 68 horsepower. Inside, the Arna
received new upholstery materials and modifications to the dashboard graphics. The chassis and electrical
system also evolved with the installation of new coil springs in the rear suspension and a revised 12V
electrical system to mitigate chronic malfunctions.
In mid-1986, Alfa Romeo discontinued the TI versions, keeping in production only the basic 1.2-liter options
and the 1.5-liter configuration until the assembly line closed in 1987.