A manufacturer usually provides an identifier for each particular type of product they make, known as a model, model variant, or model number.

There are five known model variants, all out of production:

Available model variants are LX sedans with either the 1.5-liter gasoline engine or 2.0-liter diesel.

The EA series was available in eight model variants:

All model variants are equipped with Alfa's electronic "Q2" limited slip differential.

All model variants will be fitted with electronic Q2 limited slip differential.

The 2008 model added 13 variations bringing the total to 44 model variants.

This model variant was nicknamed "little doll" and cost 7,300 Mark.

It is a limited (5500 units) version for all model variants of the A-Class vehicles.

In total, 29 model variants were available, with 16 Saloons and 13 Estates.