
Its a Crosley, 1946 to 1948 model - and since the one in the picture is a convertible it must be a 1948 model.
Powered by a 724cc strait four in that year, 26.4hp with a 3 speed manual gearbox. The engine was quite interesting; named CoBra it started life as a wartime torpedo boat and B-17 flying fortress power generator. It was made out of sheet metal rather than a solid block, done to avoid hotspots in the engine that could cause fuel to pre-ignition before entering the cylinders. As a result it only weighed 60kg, with all the engine assembled, and had horrible corrosion issues. Understandably, that gave it a rather bad reputation.
http://upload.wikimedia.org/wikipedia/c ... _block.JPG - that's the engine, and you can see the rust on it.