Bill Peet's CARS

So I'm surfing around Bill Peet's website and I find these old designs for the Disney short, "Susie the Little Blue Coupe." I've yet to see the short, but these designs look uncannily like Pixar's character designs for CARS. See for yourself:

Bill Peet's car designs

Pixar's car designs

I duno. I guess there's only so many ways to design cars, but I feel like Bill Peet must have had a pretty strong influence...wouldn't be surprised if they had pulled some of his drawings from that handy Disney archive. Visit Bill Peet's site for more pictures from "Susie."