Sorry, my memory was a bit shaky. Although the door and windshield resembles the first series VW Scirocco, it is indeed based on the Marathon delivery van, with a body designed by Brook Stevens. The VW reference came from my grandfather who worked at Briggs and showed me the car. He thought some VW body panels might have been used in making the car, but it appears he was wrong. The car is cool and as far as I know it exists still somewhere within the Briggs company.