We attended the annual Easter Sunday car show today. A regular participant of this show is the Museum of Transportation, with its signature entry the Chrysler Turbine Car. This rare vehicle was built in the sixties and only about half-a-dozen of the 50+ originally built still exist. 

Unusually, they were actually operating the car. The first short video has the car running normally. It sounds like a vacuum cleaner. The second video has the car shutting down and has the characteristic sound of the winding down turbine.