Yesterday, I was at a car lot and saw a 98 ML 320 for a $15,900 with about 65,000 miles on it. I am interested in purchasing it, but I am unsure whether it is going to be expensive to maintain or not. I have no problems doing some work on it ie. oil changes, filter changes, brake jobs etc, but some more advanced procedures will have to be done at the MB shop. I would be trading in a paid off 02 Mustang with 23,000 miles, and I would end up with a small payment each month. Note that the Mustang is not particularly reliable, but the parts are cheap and easy to come by. However, the Mustang is not good in the snow, and winter is approaching. Am I crazy to do this or is it worth it? Any feedback would be greatly appreciated, small or large since this is a big investment and money is tight right now. Thanks so much.