difficult to put a millage on this .depending on service history, and type of driving i suppose. if she is sounding quiet and not burning oil , then there is good reason to believe that she is good for quite a few miles yet ... i have often wondered about the autobox standing up to moon miles , but the usual high milers are manual gearbox , and of course diesel. you dont see many users with very high miles on the kv6 , but maybe there is a post on here asking the same question. a thing to remember as well is that at very high miles every part on the car will have had high usage , not just the engine and gearbox. you are at least in a good position knowledge wise and able to do your own services and jobs. if you really fancy the car then go for it, and make a little noise for a better discount due to the high milage . your call. ...