The Parnelli VPJ1 is an open-wheel race car, designed by British designer and engineer Maurice Phillippe for Vel's Parnelli Jones Racing, to compete in U.S.A.C.

It was driven by Mario Andretti, Al Unser, and Joe Leonard.

It was powered by an Offenhauser four-cylinder turbo engine, reputed to develop between 1,200–1,300 hp (890–970 kW), depending on turbo boost pressure levels.

In its original configuration, the car was designed with dihedral wings mounted to either side of the cockpit and sticking up at 45-degree angles.

Al Unser and Mario Andretti saw minor achievements, with Unser scoring podiums at Indianapolis and Pocono, and Andretti at Phoenix.