Every petrol head says no to 3.2 but so many sold they are plentiful and kept by fastidious owners , have better numbers than a T5.
Mate bought BMGs ex mechanic driven XC70 3.2 and must have over 500,000 KLM on it by now, he loves it, he drives to jobs in the country towns with tools and supplies in back, takes his kids other times so seats always in use. He isn't rich, doesn't drive fast, it works for him.
T6 is epic in my V60T6 , when Mark drives it to take it to BMG for services (and I get one of his car collection....sadly not the 240 V8 as yet....) He gets fuel under 9/100K. I'm sitting at low 10s/100K and when frisky just under 12s.
When he had his XC90 V8 he was able to get low , under 10s easily.
*Edit, it had 350,000k when he bought it!