I've had my XC70 for about 3 months now. I've also owned an audi A4 AWD and a subaru outback AWD. <p>Here is Northern Cal, the San Francisco Bay area, we seem to have more than our share of grooved pavement. The XC70 seems to be very unstable on this and also a bridge with steel mesh driving surface.<p>While i expect some tire instability, the volvo is much more unstable than the above mentioned cars. It almost seems as though the computer program is not performing correctly. <p>When I went over the bridge, the car was scaring me. The AWD was jerking the car around. <p>I wonder if there is a problem with the AWD programming.<p>Any one else experience this?