What makes sense?
Well I dunno, maybe subconsciously that Tex Avery cartoon planted the idea of anthro-car universes in my head I don't know. I've seen it before yeah, funny how the car one and the plane one are basically the same cartoon. I dunno, I kinda liked it, the 50s parent stereotypes are kinda corny especially mixed with car-puns. But it is cute to see an animated baby car for once, adorable. I was never a fan of how anthropomorphized they made their tires, making them stretch into arms and stuff. I've seen other vehicle anthro-artists do that and I wanted to make sure to specifically avoid that.. it just looks weird to me.
Honestly when it comes to cartoons with anthro cars, there've been two things I've liked besides TBLT. Firstly would be the Chevron gasoline commercials, their cars are adorable to me. I grew up with those commercials on TV, and them coupled with TBLT is probably what made me see 'eyes in the headlights' as the only eyes a car should have. I always thought the Pixar windshield eyes looked weird.
I mean, bird limbs on planes makes an odd sort of sense. Sorry, I wasn't being clear.
There were quite a few theatrical shorts in that period where they would basically recycle a plot with a slightly different spin. Warner Brothers did it all the time, and Tex Avery's run at MGM was no exception. It comes off as odd to us now, in the age of binge watching and re-runs.
As for Cars, I can see where you're coming from, though the windshield eyes makes a certain amount of sense. Being that the cars are the central characters in the film, their eyes being up higher than the headlights and much larger means you can get a wider range of expressions out of them. It also shifts the focus of the face onto a larger portion of the car, rather than having it centralized in the front with all of the cab just being empty (which, in a universe made entirely of talking cars, would be a little creepy). From a design standpoint for a feature about cars, it makes sense. The headlight eyes work better when the cars are supporting characters, I think. Then again, I'm thinking of this more from an animator's standpoint than somebody who's sexually attracted to cars.
For similar reasons, that's why I don't mind the tire arms the cars had. It is a Tex Avery cartoon, after all, so it's kind of expected the universe's rules will be bent to their limit.
Pardon the cartoon sperging. I kind of went to school for this sort of thing, is all.
Also, speaking of animating cars, not sure if you've ever come across this story of a Pixar animator trying to parse how cars pick up things in Cars. You might find it amusing.
Also, that Chevron commercial, did Aardman studios make that? It looks like their work, particularly the way the mouth is animated.