I replaced my 2016 A7’s oem 20 inch Pirelli P zeros after 2 years / 31,000m with Vredestein Ultrac Vorti R - identical spec, load & speed rating - after reading positive reviews of the Vredesteins and previous good experiences with the brand. After doing 1,000m or so on the Vredesteins I’ve noticed a consistent over sensitivity to road surfaces, anything less than billiard table smooth tarmac causes a steady ‘buzz’ through the steering wheel. I had all 4 wheels rebalanced by the tyre fitter and that did reduce the vibration but there’s still the wheel ‘buzz’ and a harshness to the ride on rougher road surfaces that I never had with the Pirellis. My car has the optional air suspension and I’m really fussy about ride quality and road noise, so far both seem to have deteriorated since the tyre change - anyone have any experience of the Vredesteins or suggestions about any other potential causes of the problem? Thanks for any ideas folks.