I dunno, racer... it sounds like you're feeling inadequate.
I bought an S because it was the one that became available to me in the right situation. It didn't make any difference to me whether or not it had the S on the back. It makes no difference to me whether anyone else's has it either.
The slight you seem to be feeling is all yours.
Like you said, and I've already posted as well... they're great cars. Enjoy what you've got!