Airlords of Airia (2013) is a steampunk short film, with a running time of 13 minutes.
While primarily Steampunk as the focus is on airships and clockwork, there is overlap with Dieselpunk and Gaslamp Fantasy. The cars seen are similiar to the Art Deco Streamline Moderne style. One faction uses dragons for air combat.
The police chief and a smuggler crew must stop an admiral from gaining control of a superweapon.