Since this cartoon came out in 1936, there's no way this was to introduce the first post WWII Chevrolets. The US didn't officially enter the war until 1941.
This starts out with a gnome (perhaps an elf, I'm not an expert on fictional tiny people, but they don't have wings, so I guess that rules out fairies, sprites, and a few others) watching how Cinderella's being treated by her 2 step-sisters who are both ordering her to do things at the same time in 2 different rooms. One step-sister needs help with her hair and the other needs her corset tightened and tied. The gnome stops laughing at times when, off camera, it appears that the 2 step-sisters are beating Cinderella off camera.
We then see the gnome taking Cinderella's measurements while she is sleeping on a thin mat on the floor. The cartoon Cinderella at this point is very realistically drawn. She looks like it could almost have been an Impressionistic painting or pastel drawing.
The gnome gets the others to help - spiders spin the silk for her gown and most of the gnomes build a coach using a pumpkin, plus some grape vine for shock absorbers, fireflies for headlights, worms wrapped around flowers for wheels, and so forth.
The coach then goes through a "modernizer" and is turned into a brand new Chevrolet as we see Cinderella in her gown and crystal slippers.
This starts out with a gnome (perhaps an elf, I'm not an expert on fictional tiny people, but they don't have wings, so I guess that rules out fairies, sprites, and a few others) watching how Cinderella's being treated by her 2 step-sisters who are both ordering her to do things at the same time in 2 different rooms. One step-sister needs help with her hair and the other needs her corset tightened and tied. The gnome stops laughing at times when, off camera, it appears that the 2 step-sisters are beating Cinderella off camera.
We then see the gnome taking Cinderella's measurements while she is sleeping on a thin mat on the floor. The cartoon Cinderella at this point is very realistically drawn. She looks like it could almost have been an Impressionistic painting or pastel drawing.
The gnome gets the others to help - spiders spin the silk for her gown and most of the gnomes build a coach using a pumpkin, plus some grape vine for shock absorbers, fireflies for headlights, worms wrapped around flowers for wheels, and so forth.
The coach then goes through a "modernizer" and is turned into a brand new Chevrolet as we see Cinderella in her gown and crystal slippers.