I own a mid-year 2005 GT (last four digits are 1727) and a 2006 Heritage, (last four digits are 0629). Note that every year, the last four digits start fresh again. The eigth number from the right represents the year of the car. If you are buying a Heritage you have no worries, as all 2006 cars are bullet-proof. My mid-year 2005 car is also a trouble free car. I just installed the transaxle cooler myself on the new 2006, and find that both cars are nearly identical with all the updates. The only difference is that my 2005 car has the jewel-like billet, CNC machined "A-arms" that were installed as a fix before they contracted with a new vendor for the cast parts. So I guess that makes my 2005 a little better than the 2006. So, don't worry about the VIN, even if your car ended in ...6Y400001, you still would be buying a car that had over 2000 cars preceeding it on the production line. Hope this helps. :wink