I purchased my 2000 Mitsubishi Diamante in Dec. 2003. I did a lot of online research before purchasing and found that most of the people complain about its fast depreciation, but praise reliability of the car. I was looking for a good used car, so fast depreciation was a good news. Why pay $36,000 for a new, when you can get a great used car for $12,000? So, I found a Diamante with 55,000 miles online and drove it home. For two years that I owned this car I just did regular maitainance (oil, transmission fluid, brakes, put new set of tires). I had no problem with transmission, it shifts perfectly. I didn't have any problems with the heat-core either. I spent only $480 in maintainance to keep this car in excellent shape for two years.
The engine has great power, it leaves 90% of the other cars behind. I love its Infinity 8 speaker stereo system. The steering is much better than in other cars that I have owned. This car is very comfortable (I have the LS model). The climate control system is easy to use and useful. The body engineering feels safe and is safe.
I have a hard time thinking of somethings. Hmmm, may be some cracks on the "leather" on the driver's seat. Really, the Diamante is not a Lexus LS 430, but for the money that I paid for it, I got much more than I would get with any other car.