From 1957 until 1965, long-wheelbase Crown Imperial cars would be finished by Ghia in Italy . The earlier models used two-door hardtop bodies mounted on the more rigid convertible chassis; these would be shipped across the Atlantic, cut apart, lengthened by 20.5 inches (521 mm) and reworked. Later models were built from four-door models to the same specification. Each took a month to build and carried a high price for the time as much as $18,500.