Kapow! Batmobile makes £2.6m
The car from the 1960s television series fetched 4.2 million dollars (£2.6m) at a US auction this weekend.
A spokeswoman for the Barrett-Jackson Auction Co in Scottsdale, Arizona, says the winning bidder had not been disclosed.
The 19ft black, bubble-topped car was used in the Batman TV show that starred Adam West as the Caped Crusader.
The car's owner - famed customiser George Barris, of Los Angeles - transformed a one-of-a-kind 1955 Lincoln Futura concept car into the sleek crime-fighting machine.
On the show, it boasted lasers, a "Batphone" and could lay down smoke screens and oil slicks.
It became an immediate icon around the world and ranks as one of TV's most famous cars.
Barris' publicist said his client was pleased with the auction result.