You have done a really good job! I'm impressed.There are only a few things I found you may want to take into consideration.
In the animated intro, the white Suzuki of Gastonia portion comes and goes so quickly, it is impossible to read. (I'm not a fan of those intros anyway, so I won't say much. Ask me if you are wondering why.)
Gastonia, what? I'm guessing North Carolina? Not only is it good to have the state listed, it would be good to have it written out in your meta tag keywords. (Finally found NC on the Store page. It would be good to have it on the home page, too.)
It would be good to have a row of textual navigation links across the bottom of each page so people wouldn't have to scroll to the top to move around your site.
Be aware that when people see an underlined word or phrase, they are going to try to click it as a link.
On the tire page, the $85 has slipped out of place (in NN anyway).
Your title tag should probably be the first thing under your <head> tag.
I think your site is well organized, the graphics are good, and you have given well presented information.
Congratulations and best of luck with it.

Sandy
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www.alleghenyweb.com