Volvo S80 T6 AWD from 2011 Consulting

Hello dear Volvo community, as you probably see on the profile I come from the Audi corner and currently drive A7, but I am rather dissatisfied with my car and looking for alternatives for a relatively powerful good all-wheeler. As mentioned in the topic the S80 T6 AWD from BJ 2011 crossed my way in the search. Since unfortunately I found hardly anything in the direction of the purchase advice of the more current S80 I was so free to start again. Is there any explicit flaws? Technology spinning of the electronic helpers? How robust is the 305hp T6 engine and is there any known problems with it? (Does the T6 actually have timing belts or chain?…. Since I have had extremely bad experiences with chains in the last vehicles and I have been looking back at the good belts) The targeted running performance that is possible for me up to a maximum of 50k. And at the end… how far away from the Data are the consumption values for Volvo? Greetings Jay