From what I have learned the 1996 and 2001 are the best models. Very fun car to drive, and more power than would be expected form a 2.5 liter engine. Keep all fluids and filters clean, and the car will serve you well.
I bought my millenia used, with just under 100k miles on it. I have had it for almost 10 years and I can honestly say it is the best car I have ever owned, and the one I have loved most. I have only had to replace the timing belt/water pump and a few hoses and that is it. this car is So fun to drive and I have driven it hard, in the city daily, with a lot of stop and go. It developed a oil leak a few days ago, and I drove it anyway, stupidly, but I had no choice and it ran dry and caused severe damage to the radiator and hoses. it will not be worth it to fix, as I cant be assured the engine hasn't suffered damage as well. I am so sad to let this car go.
This is a great car to drive. Very quiet Bose sound and supercharged. Just hope you don't have to fix it. Waterpump and timing belt cost 1800.00 vacuum leaks $200. Used tensioner for AC Belt 175.00 Nice to drive just be prepared to crack that wallet open when it needs fixing