1991 Oldsmobile Achieva

Oldsmobile showed off its Achieva concept at the 1991 Chicago Auto show. It was widely acknowledged as a preview of its upcoming Calais replacement. The concept rode on a 107.2 in. wheelbase and was 186.6 inches long. Power came from a W-41 2.3 liter Quad 4 engine.

Source: encyclopedia.classicoldsmobile.com

Images: ConceptCarCentral; deansgarage.com