I am amazed as to the ride quality of my 95 XJ6 (X300). I have replaced the front shock upper mount and the rear shocks and upper mount at 65,000 miles. Had to replace the rear shock mounts again at 133,000 due to poor work the first time (also did shocks since access is so difficult). And just recently replaced the sway bar bushings. For a car with a little over 134,000 miles that is amazing. My wife loves the ride and talks about it with friends frequently. Jaguar did it right that time.