The earliest known officially licensed car of comic book superhero Batman has been put up for auction.

The 1963 Batmobile is believed to be the first custom car to be licensed as Batman's swanky ride and is expected to fetch up to $500,000, according to Dallas-based Heritage Auctions. It is the first time the vehicle has been put up for auction. It is being sold by Toy Car Exchange LLC, an online marketplace for collectible cars, which bought it and had it restored to pristine condition. The opening bid was $90,000.