Similar to #10 where the B is a tire tread, could you try having the word TIRE as that tread as well as the B. Also a version with the tread pattern of #13 if possible
Haha.. #35 i like how you switched the slogan around so the font is black. That does add something but still not perfect yet. Maybe a different font? or an effect on the font?
about the effect (glossy, shadow, gradient, 3D, etc) in my opinion is better to be put as the last step in finalizing after we got the right logo.
a great logo should look great in B/W version, like the use in Fax machine, photocopy, stamp/emboss, i always do these steps in logo design to make sure we get the best result. i hope you can understand.
#141 and #142 > B/W version to show how it will looks like in the faximile, stamp and photocopy result still has the exact same looks as the colored version *the advantage to have the new logo is not too different from the older one is to make your customer still recognize your business from your logo while it still got a fresher looks.