Hi s4andy,
had a 4.2 since may, !Removed! love it!! You get all the power but a good ride, (not a bone shaker rs) diesel consumption is a minus though especially towing a trailer. 15mpg 😂😂😋. I've had a couple of suspension glitches but that's it since having it. Had a rsq3 and rsq5 as courtesy cars both times it went in but still looked forward to getting my Q7 back after a couple of days!! Hope this helps.
regards Henry