I was going to add that for it to be considered the next generation, it would need a platform change. That is what defined the difference of the 1st five generations.
broken lug nut studs can make the wheel fall off and only makes a bad noise for a short time before it happens... (or so I'm told by the family member that had this happen)
In CO they used to do a gas cap pressure check with the emissions test, so even if you clear the code the car still has to pass their test. Not sure if they still do.