I bought my j30 from a one time owner who maintenanced every 2-3 weeks. (I know it sounds ridiculous but he had all the receipts). It's a wonderful car, and it's in pretty good condition. But as with all cars, time wears them out. The problem there is the cost of everything. (these are what I paid at the time, may be different) 80 dollars for a rebuilt waterpump, 600 for the labor. Also have had problems with the stereo, 1100 for the plugs, brakes, and struts. Overall car is good and has lasted well. If regularly maintained and taken care of, it's fairly decent. Just a few minor issues with electrical things, but long lasting vehicle for sure.