The Marengo light commercial vehicle derivatives only have two seats, and have only been equipped with diesel engines.

Fiat has a tradition of naming their commercial vehicle derivatives differently from the cars upon which they are based, compare with the Fiorino and the Penny.

Unlike the succeeding models it had unique bodywork, as no other three door estate version of the 131 was marketed.

The Marengo received a number of safety upgrades in April 1993, including an energy absorbing steering wheel, adjustable seat belts, and an optional driver's side airbag.

The nameplate was then retired, but the van version of the Fiat Stilo Multiwagon (2003) occupies the same slot in the marketplace and is the closest thing to a successor.