continued to be produced until February 1991. 325 of these were built in total. Also in 1990, Renault was forced to install the less powerful catalyzed engine in cars destined for the home market, leading to grumbling amongst Alpine enthusiasts about the loss of power (down to ) while the 25 Turbo saloon actually gained power when it became catalyzed. In response Danielson SA, a famous French tuner, created an upgraded version of the Le Mans with . GTA USA Renault and Alpine quickly considered exporting the GTA to the United States through the American Motors Corporation subsidiary. A model derived from the V6 Turbo was therefore designed and finalized to adapt to local constraints. In compliance with North American regulations, it lost its front lights under the canopy in favor of retractable optics, its bumpers were more protruding and deformable, and side lights were inserted into the bumpers and integrated into adhesive protections. The front bumper grille was widened to improve cooling. The front turn signals were orange. A third brake light was inserted under the rear spoiler. The GTA USA benefited from a major redesign of the chassis. The tubes of the front structure were replaced by pressed sheet metal. Energy dampers for the shields were added. The sides were reinforced with bars in the doors and doubled side reinforcements. Many of the developments made for the GTA USA chassis were reused on the A610. Renault had planned a federalized version of the Alpine V6 Turbo, originally for the 1986 model year, but development proceeded slowly. The US model had an emissions cleaned engine with , bigger bumpers, and flip-up headlamps (photo). Various crash safety improvements were also carried out, and it was planned to install softer suspension. AMC/Renault was planning a mid-1987 introduction, hoping to sell 3,000 Alpines per year (with an additional 300 cars slated for Canada). In March 1987, however, Renault sold its share in American Motors to Chrysler and began to withdraw from the American and Canadian markets. Commentators had already expressed concern about AMC dealers being able to handle such an expensive and complicated car. By the time of the withdrawal, 21 pre-series cars had been finished. Twelve of these were sold by Alpine directly to specially selected customers in France. Limited editions Le Mans The Le Mans is released in February 1990. It is planned to build 300 units. 325 will be