Rick Champagne, from the Phoenix-area, bought the car Saturday night at the Barrett-Jackson auction, the Los Angeles Times reported.
Champagne told Speed TV he had his eye on the Batmobile "ever since I was a kid. I had a toy model of it."
The Batmobile was created by car customizer George Barris, who bought the 1955 Lincoln Futura concept car for $1 from Ford and turned it into Batman's iconic ride.
"I saw the script and it said, 'Bang,' 'Pow,' 'Boom,'" Barris, now 87, said in an interview before the auction. "That's exactly what I wanted the car to do. I wanted it to be as big a character as the actors."