Tonight someone decided to go all out trying to download all of the data from the individual vehicle pages. Not surprised, I expected this would happen eventually. It appeared they just unleashed a script and had it throwing requests as fast as possible. Since I pay for this site out of pocket, I try to run it as low cost as possible, so the instances powering this site aren't exactly cut out for getting hammered like that. It was getting disruptive, so I disabled those pages as a temporary fix.
When I make them available again, they will likely only be available to registered users. Of course, that means I will have to turn on the "sign up" page that is also currently disabled.
That's all for now, just wanted to explain the "this page is disabled" message you might run into.
UPDATE: The same person started hammering the dealer data pages as well, so those pages are also disabled.