The AMC AMX/3 was a concept car built by Vignale in 1970.

It was an exotic, mid-engined successor to the AMX, known as the AMX/3. It came close to production in 1970. Seven prototypes were made, being styled and engineered by AMC using the 390 cid AMC V8, with bodies hand-built in Turin, Italy. Dick Teague designed the car, with it being derived from the front-engined AMX coupe, which was AMC’s mainstream sports car. To design the suspension and drivetrain, AMC hired Italian master designer Giotto Bizzarrini.

Bizzarrini’s experience with his own mid-engined P538 made him one of the very few engineers with hands-on knowledge designing mid-engined sportscars. Combining left over bits and some new AMC parts, Bizzarrini compiled a fully independent suspension. The chassis was a semi-monocoque backbone type, which, with the body welded on, proved to be very stiff. AMC added a 390 ci V8 engine, which was directly derived from the AMX coupe.

AMC ordered 24 more prototypes for testing purposes due to the success of the concepts. Unfortunately, financial problems at AMC, along with stricter safety and emissions requirements meant the car never went into production.