I have appreciated your contributions very much. Recently purchased a 1999 Aurora (35,000 miles/like new condition). Car had been driven lightly over past 3 years (less than 10,000 miles total). However the car seems a little short on power compared to my original 1995 Aurora. Any tips on what I could do to check out my concern? Also, when applying preassure to brakes when car is idling, a very slight vibration is noticeable (at peddle and steering wheel). Any hints from you concerning this? Thanks with appreciation. RZ