Several of you who’ve been examining the progress of the Automotive Alphabet have already expressed concern about what I had planned for the 24th letter of the alphabet. Well, as Stan Lee likes to say – Excelsior! We’ve been accepting standalone letters with the marque/model names inside of them for this extended exercise, so why not exhibit this fine Excelsior motorcycle from the Gooding Amelia Island auction earlier this year?

Not exactly a standalone X? Well, how about the badge on the nose of the 1960 Pininfarina X show car for sale on Hemmings.com?

Express yourself – show us your standalone Xs, you exuberant exhilarating X-Men.