I've been "looking" for a Vette for about a year and a half now, but the time to buy is coming this summer. I'm going for a C6 for sure, somewhere from an 05-08 but need advice on what year to buy. I'm most likely going to be buying from the U.S. and I know that in '07 they started offering a 100k mile warranty and I know that in '08 they started putting the LS3 into the Vettes but I'm wondering if anybody can list some more differences between the 05-06-07-08. When did features such as Dynamic stability control, HUD, push button start, paddle shifter etc. become available?