I also kept meticulous records of repairs, maintenance & depreciation on my 1995 C280 which I purchased when it was 2 years old with just short of 10,000 miles on it. You didn't mention the interest cost of money that you had tied up in it, but you have to factor that cost in also. I owned my C280 for 11 years, 5 months and put about 120,000 miles on the vehicle. Total ownership cost came to $310.70/month. At the end, I was driving an old 14 year old car. Now I know what driving an old car costs, I just apply those dollars to a lease, and get new every 3 years and enjoy the experience without all the hassle of car repairs.