1996 Chrysler Concorde

My mother has just acquired a 1996 Chrysler Concorde (3.5L engine) from another
family member (89000 miles, $3600). She is confident that the car has been
maintained, not abused, and all recalls are up to date. Aside from the air
conditioner being inoperative (I understand this was a common problem with this
model, quoted $900 to fix), the car appears to be in good shape and everything
else is operational. Are there any other well known conditions-problems I
should be on the lookout for since I will be keeping an eye on the car for her?
Thanks for any replies.