I never really thought about it, but I would say you're right. Probably because the old hwys are much more romantic and scenic then say an interstate, plus it's easier to film on back roads. Besides I don't think this scene from "Vacation" could have been done on an interstate

A cemetery in Chicago I pass often...

No one ever called these suicide doors...

"Volvo is weird."

What could go wrong?...

What a find! It's just the piece I need to complete my decor...

I'm sure someone will give it a loving home and the second chance it deserves...

How about a google car gif...

No, this is even odder...

Found it "This appears to be a "greatest car-song hits" album."

I'm thinking it must have been a re-release

Here's some back ground

It's a '67 Olds Toronado

Because...

But, she loves trucks...

-or-

Picture was taken at 2013 Chicago Memorial Day Parade... or did I miss your sarcasm?

...and one very dishonest car