Joe,
True. If you look at only that it means absolutely nothing. My point was simply that the more pages the search engines know about, the better.
But first regarding your site and fxchevy(dot)com being better. Do you mean the number of leads or the amount of traffic you get? Cause I really think you should get more traffic then them. Problem lies maybe in your conversion ratio? You have to admit that your main entry page is not exactly what your dealerships' customer is expecting (do your know your bounce rate for this page? number of visitors that exit on the first page they see). Do you know your monthly unique visitors, unique leads, unique phone calls? and do you know the same for your competitor, fxchevy? let me know and we will see whether my point makes no sense.
Back to my point in my earlier post, my current provider has their website hard code inventory pages, so instead of having a page called dealer(dot)com/inventory.aspx?item=5 my site will create a page dealer(dot)com/2008_acura_tsx_vin_used.html and since google's algorithm looks at how often site content gets updated, having your inventory pages indexed is very important and helps your overall rankings.
Now all these fancy pants dealer website providers create fake content that is the same for each dealer and thus will not help your rankings. My provider is guilty of this too. You have to be the one to add the content if your provider allows you
Back to TKcarsites, their inventory is iframed into fxchevy and thus this does not help their site with search engine rankings and actually only helps getauto(dot)com that lists their inventory (just right click on their inventory tool and click properties in the dropdown). definately something they can see big results with if they change.
That said, I do agree that those numbers are not an accurate reflection of how you rank, it is simply a tool to help you improve. I would love to analyze the data from fxchevy(dot)com and usedcarking(dot)com to see where your problem is, if you think you have one. You can email me at oscar (at) goodosnacura(dot0com
PS. My site provider has problems too (too slow, too few pages, not flexible enough, etc......) but I get more traffic and higher conversion then with earlier providers.