My wife has a 1998 Impreza Outback Sport, it is an automatic and has the 2.5L motor. It has a little over 210,000 miles on it. It shakes pretty hard after 40 mph and the front alignment need to be fixed since the toe (in) was a little off and the inside of the tires was bald. We just got the alignment fixed and new tires on the front. I rode home fine from Sears and when i went back out it seams like it got worse from just that drive and if this helps there is a sqeaky noise coming the front driver side wheel/finder area. Thanks for you help!