Cars in the 1930's didn't have such crumple zones as modern cars do. Also, in the city they don't move as fast as on the freeway. Even a small difference might decide between life and death.

I would suggest giving the story the benefit of the doubt. It must stay at least somewhat true to the style of the comics, but at the same time explore the world in a more serious and realistic tone. And it manages that quite well, it's worth reading.