According to Wikipedia:
The Speed King Auto Racer was a midget two-seat roadster built by the R. E. Chambers Company of Beaver Falls, Pennsylvania for use at the 1939 New York World's Fair where a 60-by-200 foot oval racetrack (the attraction was called the "Midget Auto Racers") saw approximately twenty Speed Kings in constant use whenever the Midway was open. As expected, the Speed King cars were very heavy and sturdily-constructed to hold up under such hard usage.
One of the little beasts (and it seems that only six still exist) showed up at Micros on the Monument in Racine, Wisconsin. Owned by Mel and Rosemary Stark, the car was rescued from its 50-year rest behind a farmer's barn.
Who says there is no such thing as a "barn find" today?