Looks good. I like the graphics and layout. You have some JS (javascript) errors. 3 that I see when the pages load. (Internet Explorer 8) You may want to have your designer look into that.
Your keywords are:
car, auto, tn, white, house, auto repair, auto repair white house, auto repair white house tn, car repair, imports, import auto repair tn, foreign, bmw, volvo, mercedes, saab, volkswagon, honda, nissan, toyota, mitsubishi
They are good, however..they are the same for every page. You may want to do something let's say for this page: Our Auto Repair Services , and add some of those services in there. Make each page as unique as possible.
I would also include your shop name as part of every title, like:
About Us - CAR Maintenance & Performance
Our Auto Repair Services - CAR Maintenance & Performance
It's not always great to copy a site title to every page, but in your case...the words CAR and Maintenance are good title key words.
You should resubmit your website to:
Google.com
Bing.com
Yahoo.com
dmoz.org
Currently in google, you have 2 listings only and they are from 2008: Google
Hopefully this will help you a bit.