American Custom Industries (United States)

American Custom Industries (ACI) was established around 1967 in Sylvania, Ohio. The company specialized in custom body and performance enhancements for the Chevrolet Corvette, producing a range of unique models and components tailored to Corvette enthusiasts.

In the late 1970s, ACI collaborated with renowned Corvette racer John Greenwood to develop the GreenwoodTurbo, a turbocharged Corvette featuring distinctive and stylized body panels. These vehicles were available either as complete cars or in kit form, allowing customers to customize their own Corvettes. The GreenwoodTurbo later underwent a rebranding to become known as the American Turbo.

In 1980, ACI introduced the Duntov Turbo, a turbocharged Corvette convertible that featured significant modifications, including large mudguard flares, a custom bonnet, and an upgraded chassis and suspension. Although the turbocharged engine did not significantly increase power compared to the stock version, the Duntov Turbo was noted for its improved handling characteristics. This model received endorsement from Zora Arkus-Duntov, often referred to as the 'father' of the Corvette.

Another notable product from ACI was the American Turbo Sportwagon, which was a turbocharged Corvette designed with a raised rear deck to enhance carrying capacity. Throughout its operation, ACI continued to manufacture custom fiberglass body panels for the Corvette, contributing to the aftermarket customization scene.