go to hotwheelscollectors.com then on the showroom tab, click on sneak preview archive. you will be able to see the preview of cars coming up in sequence. that is where hot wheels will show you what wave is coming up next, and that is how we identify each wave. for example, the gmc motorhome wave was previewed on the 19th december 2008, and around it you can see the cars that came along with that wave (eg. black datsun, hw racing acura nsx). the '55 chevy was previewed on the 5th of december 2008, so that thunt was supposed to come before it along with red occ splitback, orange 5 alarm. enyo pointed out that the '55 chevys also came in the kmart cases, so maybe the rest of the world will get less '55 chevys since we have no kmart days.