The Aston Martin DB 2/4 Mark III (normally simply called DB Mark III, even at the time of its introduction) is a sports car sold by Aston Martin from 1957 until 1959. Bruce Wayne is an owner of a vintage model.
The car used in the film actually belongs to Zack Snyder and was purchased for $28,000 at the start of his film-making career. When '300' was released and ended up being successful Warner Bros. bought him the more recent Aston Martin Vanquish and offered him a production deal as well.
Whilst attending a party thrown by Lex Luthor, Bruce arrived for the party in his public persona driving his own DB Mark III up to the red carpet.
- Batman v Superman: Dawn of Justice (First appearance)