The STP Turbine race cars on display at the inaugural American Speed Festival got me thinking about other alternative powerplants that have been used to go racing. Today we have battery-powered Formula E, and Formula 1 uses hybrid combustion/electric drivetrains. In 1952, the Cummins Diesel Special started the Indy 500 from the pole position, having set a record qualifying speed.
https://www.hagerty.com/media/uncategorized/was-bill-lears-steam-powered-vapordyne-more-than-indy-ra...
https://www.hagerty.com/media/uncategorized/was-bill-lears-steam-powered-vapordyne-more-than-indy-ra...
