The Aerowagon or Aeromotowagon (Russian: Аэроваго́н, аэродрези́на) was an experimental high-speed railcar fitted with an aircraft engine and propeller traction invented by Valerian Abakovsky, a Soviet engineer from Latvia. It produced speeds of up to 140 kilometres per hour (87 miles per hour). The Aerowagon was originally intended to carry Soviet officials.

Though, it flew a bit off the rails.

https://en.wikipedia.org/wiki/Aerowagon