Fireman Roland Brandl says that colleagues were doing chores at the station in the town of Pregarten Wednesday when a car sped in with flames shooting from beneath it.
One man grabbed an extinguisher and doused the fire. No one was hurt.
The blaze was apparently caused by a cleaning cloth which was left under the hood.
State broadcaster ORF says the unidentified driver drove about 1 kilometer (0.6 mile) to the station after a passer-by alerted him to the fire.