Monteverdi Sierra History

The Monteverdi Sierra was an exercise in Swiss luxury coachbuilding on an unlikely foundation: the Chrysler-engineered Dodge Aspen and Plymouth Volaré. Carrozzeria Fissore removed the American bodies and replaced them with entirely new Italian-styled coachwork, adding custom leather interiors, bespoke gauge clusters, and a revised front end with Fiat 124 headlamps. The powertrain — Chrysler's 5.2-litre (318 cu in) V8 mated to the TorqueFlite automatic — was carried over largely unchanged.

Three body styles were offered: a four-door saloon, a two-door convertible (based on the Dodge Diplomat platform), and a five-door estate — though the estate remained a prototype. Total production across all Sierra variants was approximately 20–22 cars between 1977 and 1980, making it one of the rarest Monteverdi models. The Sierra illustrated the marque's late strategy of applying luxury coachbuilding to production American platforms rather than building bespoke chassis from scratch.