The Alfa Romeo Arna is a hatchback produced by the Italian manufacturer Alfa Romeo Nissan Autoveicoli S.p.A. between 1983 and 1987. The company was founded on 9 October 1980, as a 50:50 joint venture between the Italian Alfa Romeo S.p.A. and the Japanese Nissan Motor Company.

The Alfa Romeo 33 is a small family car produced by the Italian automaker Alfa Romeo between 1983 and 1995. From a mechanical standpoint it was essentially an evolution of its predecessor, the Alfasud, whose floorpan, chassis and drivetrain were carried over — albeit with simplifications to the suspension and braking system, eschewing the Alfasud's inboard front brakes for instance. The Nissan-based Alfa Romeo Arna was launched shortly thereafter, offering a similarly sized but lower priced car.