I have an 05 XC 70 with 67000 that I just purchased. The car has a vibration that you feel in seat of your pants, not the wheel. I got it to highway speeds and it began to feel unsafe. I had the tires rebalanced, so that is eliminated. When I put the car in drive, there is a "clunk" from the drivers side wheel area only or if I go from Drive to reverse and vice versa. Being new to Volvo, I was hoping this specific noise would mean something to somene who has had one for a while. Love the car.