Hi, I am driving xc60 3.0 year 2009, CBU. I never drive 2.0, so I not sure the difference. Power wise for 3.0 , it is more than enough for me. I hardly need to tekan pedal to max. but drink petrol quite a lot la. when the petrol price was rm2.1/L, drive below 3000rpm most of the time (start moving from stop) , around RM0.285/km

Maintenance cost, because it is 20k km/1 year, so if you compare to other brand's 10k/15k services, it is reasonable for a conti car.
IINM 3.0 use more engine oil. Cause there was once after services, the signal shows engine oil critically low, at the end they come to my house and top up. And said they made a mistake, thought mine is 2.0, so add in 2.0's engine oil.
As for the problem, never really had any major problem (already 150k km running).
Minor problem that I faced, or issues you should check for the car
1) both my headlight clip are broken a bit after 5 years, still usable but if you really push the headlight, it will move a bit, change a new one cost RM5000, as long when driving I dont feel the light is goyang-goyang so I dont bother (to change).
2) Engine mounting, there are total 5 engine mountings for my car, 1 was broken, 2 were nearly broke, so I change all 5 of them, cost me RM2000 plus.
3) Wiper, RM269 (ya I know expensive), but that is after 4 years plus using the original wiper.
Thats all the thing I change other than that just normal services every 20k km in between having major services according to schedule. I did all services in federal auto, so if you decide to source from outside, might be cheaper.

Hi bro,
Do you require AWD ? IINM in Malaysia only the 3.0 T6 have AWD. The 2.0 are FWD, I discover this when surveying to buy new volvo. I'm Quite dissapointed and endup not buying it. Dont think currently Volvo Malaysia are selling any new AWD XC60. Only pre-owned 3.0 t6 have AWD.

Again IINM, the only AWD Volvo car that Volvo Malaysia selling are XC90. Others like V40 or V40 cross country, V60 and XC60 all FWD. It SAD     
however do correct me if any of my post are incorrect.