That's sort of a problem. Also, look at these pages:

http://www.autoaccessoriesgarage.com/Seat-Covers/_Nissan-Alt... http://www.autoaccessoriesgarage.com/Seat-Covers/_Hyundai-So...

The page looks identical, and if you think you're fooling Google into thinking these pages are very different with a couple keyword-stuffed paragraphs of text, think again. Now open both in separate windows and click a product. The product page itself doesn't change except for the vehicle name inserted with a cookie. This looks like you're just mass-generating category and product pages dynamically, which is probably what you're doing.

Don't get me wrong, I feel your pain, and funny enough I've solved this EXACT SAME problem on a similar car accessory site. Maybe I can offer some advice.

Your main Panda problem is that you have a page for every type of product for every make and model. That's a LOT of nearly-identical pages. You need to consolidate them somehow. Easier said than done, right? You don't sell all products for all vehicles, and you want users to have an organic landing page when they search for something like "[make] [model] [accessory].

Instead of generating these landing pages and making up text, I'd use a filter on your car covers page that sticks the user with a URL variable that stays with them until they change their make/model. This also frees you of the need to make up pointless mass-generated paragraphs.

This truly is frustrating, because the site is actually functioning in a way that makes sense for the user, and Google is penalizing them for it.