See if you can get an extended warranty.They can get pricey. This is where dealers makes there money. Price them on the net first. warrantybynet.com. Should be like 1k or less. Get up to 100k. Beware, once a car has a certain amount of mileage they can fix your problem with used parts from a junkyard or whatever.Read the fine print. I used them once. It paid for itself when the trans went. I see it has a sunroof. Check for leaks behind the drivers seat. See if you get that clunking noise in the steering wheel. If you here anything from what I've been reading the intermediate drive shaft chould be shot. Make sure all the buttons work. ex- heated seats etc... I had the drivers side wheel hub go. It was a humming noise. My car was just out of warranty. I complained to GM and they agreed to pay half. My half was like $250. Check the trans out good. Mine went around 60K. I think the wheel hub chould have played a role. I don't really know. just a hunch. Had a power steering leak just after I got it. Had to replace the p/* hose. My car has or had its issues, but I still like it. Last, check all your tail lights / brake lights make sure they all work. Thats all I can think of now.

When the wheel hub is shot, you will generally start hearing a soft grinding noise...particularly when you corner. Also, your traction control/ ABS systems will start to act up.

Also, although it has never been a problem for me, a lot of people have had problems with trunk leaks on 2000+ Bonnevilles I would get them to run the car through a car wash...then check the trunk for water..

There seems to be a LOT of major stuff wrong with the 2000s. Windows.... coolant leaks.... wheel hubs.... water leaks. Thats pretty big stuff!

What seems to be the problem for these leaks??!!!!!

Really? I'll admit that the are some distinct 2000+ problems, I can only think of one that plagued the 2000 exclusively. (A steering sector problem that I have not experienced)

Besides a change to the cup holder arrangment, location of the heated seat switches, exhaust trip shape, different remote fobs(end in BT instead of XT), and a slightly different steering box, I really don't think there are many differences between 2000 and newer models.

Don't forget that just because you may see more posts for the 2000 models doesn't mean that they are more prone to problems, or that GM changed a part...it probably means they have been on the road a little longer, thus going to experience the problems first.

Can anybody detail any other parts that *changed* between 2000 to newer models, to refute my thoughts? (Really asking!)

Appreciate the feedback.