Only one right-hand drive Trevi VX was made. A small number of Trevis were built to run on LPG rather than petrol (gasoline). In North America This car marked a brief return of Lancia to the United States market beginning in 1975. Federalization was not quite harmonious, though, which combined with a lack of dealers to persuade US buyers. All bodystyles except the Trevi were on offer at one time or another, although some were sold under different names: the Spider was sold as the Lancia Zagato (from 1979) and the Montecarlo as the Lancia Scorpion. Federalized cars were originally sold with a 1756 cc twin-cam engine with . This later dropped to as emissions rules were tightened. For the 1979 model year, a two-litre engine was installed, with power up somewhat, to . More importantly, torque was up by 17 per cent. A black and gold Zagato Special Edition was also available. Quality problems meant that US inspectors went to visit the plant to see what could be improved, but Lancia took a hiatus and did not bring any 1980 models. When returning in 1981, the Berlina was dropped as they focussed on the more popular sporting variants. Fuel injection increased the 2.0's power considerably, to about (the published numbers vary considerably). 1982 was the last year for Lancia's half-hearted efforts in the United States. Model range The Beta was available in a number of different body styles: Berlina Introduced in 1972, the first body style to appear, and the most common was the four-door berlina (saloon), with a wheelbase of and 'fastback' styling giving the appearance of a hatchback, although in fact it had a conventional boot like a saloon. This practice was common in the industry at the time as manufacturers deemed that hatchback designs would not be accepted in this market sector. It featured 1400, 1600 and 1800 transversely mounted twin-cam engines based on earlier Fiat designs along with five speed gearbox. In 1974 the 1.8ES version was launched featuring electric windows, alloy wheels and sunroof. At the Turin Auto Show in November 1974 a 1300 engine joined the range at the bottom, then in the fall of 1975 the existing 1600 and 1800 engines were replaced by new 1600 and 2000 units. The 2.0 litre units had improved torque (up 20% to 128 lb ft at 2800 rpm). In the same year Lancia returned to