Designed and developed by Polimotor founder and president Matty Holzberg, the engine, based on a Cosworth BDA, tipped the scales at 168 lbs - half the weight of its metal counterpart. Plastic parts included the engine block, cam cover, air intake trumpets, intake valve stems, piston skirts and wrist pins, connecting rods, oil scraper piston rings, tappets, valve spring retainers and timing gears.
Drivers over the two seasons included Michael Argetsinger, Peter Argetsinger, Tim Coconis, Herm Johnson and Peter Kuhn. The car's best finish was a third in class at the 1985 Road America 500.
In October 1984, Amoco took the Lola on a well-publicized demonstration tour of The Big Three's Detroit research and development centers.
After its retirement from competition, Amoco used T616 HU04 in university recruiting programs through 1996. When last we checked, it was part of an automobile collection in northern Wisconsin, albeit without its plastic engine.