It all makes sense when you realize that Walt Disney himself served as a pitchman for the Nash Rambler in TV commercials back in 1954. (You can read more about it here.)
What's really interesting (to animation fanatics like myself) is that Walt Disney's interest in making TV commercials with his beloved characters led him to engage his designer Tom Oreb to create modern, stylized versions of them. The results are quite unusual in some cases.
Here's a stylish Nash Rambler commercial featuring the characters from Song of the South: Br'er Rabbit, Br'er Fox and Br'er Bear.
And here are two more Nash Rambler commercials with a (gasp) redesigned, pointy-nosed Mickey Mouse. Pluto Pup, Minnie Mouse and (gasp again) two mousey offsprings of unknown parentage are in there too.
If you'd like to see more of Tom Oreb's redesigns of classic Disney characters, click here to visit the Cartoon Brew website.