OT - Car trivia question

[bob.virzi@xxxxxxxxxxx]

Well, it is sort of related to non-standard wiper blades, which is 
what made me think of it.

What is the one part that is common to all automobiles manufactured 
and sold today?  By 'common' I don't mean the same manufacturer 
necessarily, just absolutely standards compliant and swappable.  This 
is for any car (and probably light truck too).

Hint - It was the Car Talk puzzler some 10 years ago or so.


The answer will be provided in a follow up message tomorrow.

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