Automotive Concept and Design (ACD) was established in 1993 and operated out of Phoenix, Arizona. The company specialized in creating custom automotive designs and kits, focusing on innovative body styles that could be fitted onto existing vehicle chassis.

One of ACD's notable products was the Scorpion, a kit body designed to fit the Pontiac Fiero chassis. The Scorpion gained popularity among automotive enthusiasts, leading to its distribution by PISA, a company that sold Fiero bodies from various manufacturers. This partnership helped to expand the reach of ACD's designs and contributed to the kit car market during the 1990s.