at the end of its production in 1991, the ltd crown victoria was produced with the 5.0 l v8. although a (rare) option on the mercury grand marquis, sales of the 5.8-liter v8 (with a ford 7200 variable-venturi carburetor) was restricted to fleets, with most sold as part of the ford police package. 1991 panther-platform cars with the 5.8 were the very last american cars sold with a carbureted engine.