I bought my 850 at the end of march, and I've become really attached to it. It runs great, and I've had no problems, but I came across a red 850R yesterday. I was really tempted to trade, but thought I should get some other peoples opinions first. My car has 108,000 miles, and the R has almost 165,000 miles. The car has all the records, but I am still a little sceptical about the mileage.