I was suprised in how much it pulls through the gears given it weighs 2.4t, like you say overall it's a huge step up in refinement, I thought I'd miss the bass from the Bose system in the A6 but the B&O really outperforms.I made a similar transition, I went from a 2019 A6 TDi (I previously had a 2014) to a 2022 Q8 50TDi - which looks identical to yours.
I found it a massive step up in comfort and refinement. The air suspension makes a huge difference and the V6 has so much grunt, the torque is unbelievable!
Economy isn't great, but we came into this knowing that a 2.4 ton SUV won't be great on fuel economy. It's surprisingly good on a long run though, I got 46 MPG once:
gutting.... could have done with it today although it didn't take long to warm upI don't think you can pre heat or cool the car remotely via the app in the UK, unlike some other markets.