Paul Pfanner on what the next Indy car should be built to prove once raw speed has reached its useful limit. Third in his series on the future of the sport.

Paul Pfanner was in the All American Racers shop in 2018 when this car's corroded, unfinished monocoque came down from the rafters. Now it's finished, and he explains why its fifty-eight-year wait matters to anyone with an idea on the bench.