Most of the cars featured here are early 50s cars even though the period in this movie is the 1930s.
It looks like most of the cars here are digitized, and that is quite obvious during the chase scenes, crashes.
There is a car used a couple of times that has modern wheels. And one villains hairstyle is from the 50s even though this is allegedly the 30s.
The clothing in this movie is not from the 1930s'