The getaway truck used by the gangsters is a 1940's Chevy "Advanced Design" pickup suggested to be the abandoned truck at the spot, yet the actual truck has always been a 1948-1950 Dodge B-Series pickup.
The getaway truck used by the gangsters is a 1947 Chevrolet "Advanced Design" pickup truck, which was made over 20 years after "the talkies" introduced to the cinema, and 15 years after the flashback scene was supposed to take place.