I agree with Monkey. If no Volvo history, forget it. Also Y reg means 2000/2001 which was the end of the initial phase of production. A number of modifications were introduced around 2001/2002 which improved them drastically. They are great cars, but like many others, if it has been abused it will cost you a lot. I would suggest if you are set on an S80 to look at Volvo's own webpage for selected used cars. Yes, they do go back that far and you get a better warranty.