the clever company logo designs impress me, their innovation and style with design

It't pretty clever to incorporate the o and r in the word Tour with the yellow sun to represent a bicycle

And you've probably already heard this on, that the space between the E and X are the arrow pointing toward movement, progress, going forward

Found on http://twistedsifter.com/2011/08/20-clever-logos-with-hidden-symbolism/  which has a dozen others not vehicle related