What was the name of a short story about aliens thinking cars are the dominant life form and the humans inside are their internal organs? I think it was in a science fiction omnibus.

What was the name of a short story about aliens thinking cars are the dominant life form and the humans inside are their internal organs? I read it in the UK in the 1980s in English in a science fiction omnibus. That was the only story I remember.

What was the name of a short story about aliens thinking cars are the dominant life form and the humans inside are their internal organs. Thi k it was in a science fiction omnibus

What was the name of a short story about aliens thinking cars are the dominant life form and the humans inside are their internal organs? I think it was in a science fiction omnibus.