My 850GLT is the 6th car I have owned, and by far the best. I've been driving it for 13 years, and it has never let me down. The body is impeccable, having no rust whatsoever. Find a good Volvo mechanic who doesn't over charge for repairs, and you've got it made with this car. No unusual repairs required, only routine maintenance, with a new timing belt being a bit pricey. Overall, cheap to run.
The heated seats are a great luxury when it's cold outside.
A few more hp under the hood would be nice, otherwise this vehicle is perfect.