Wikipedia
Schienenzeppelin
The or rail zeppelin was an experimental railcar which resembled a zeppelin airship in appearance. It was designed and developed by the German aircraft engineer Franz Kruckenberg in 1929. Propulsion was by means of a propeller located at the rear, it accelerated the railcar to setting the land speed record for a petrol powered rail vehicle. Only a single example was ever built, which due to safety concerns remained out of service and was finally dismantled in 1939.