Agree with the ride quality as in my wife’s A200 the ride is super smooth, however I’m sure in the A34/45s it will be much more liken to the RS3 with a harder set-up. The wife’s car is a nice effortless and relaxing drive but then I can’t wait to get back into the RS3 for the speed, noise and an interior that is perfectly designed.
Does your wife's car have the adaptive dampers ?
I thought the none aero A45s came with this as standard, but according to @T-1000 above it sounds possibly not.
That does concern me, as some of the reviews have commented on the ride being VERY firm on the A class without the dampers.
My RS3 has mag ride, but that is mega firm, I would not want it harder than that.