After a series of breakdowns with my current car, I've finally decided that its time to get a replacement. Looking round local dealers, I've found a 9 year old used Mazda 6 diesel which seems to meet my requirements, and as far as I can tell is in pretty good condition (including most of the points mentioned at What to check when buying a used car?)
My concern though, is its very high mileage, with 198k on the clock, although it does seem to be priced to reflect this. As I've never owned a car with anything even close to that mileage before I wanted to ask the experts here whether this seems like a good plan and is there anything specific I should be checking over and above the normal checks?