i have heard 2.4T only. my guess, and I will say that i have thought this through, is for 3 reasons: volvo may be hoping that the 2.4T will be the "volume" variant of the S60s, so offer AWD in that variant and hope for the best. second reason is price - a T-5 with AWD would be way too close for comfort price-wise with the S80 2.9. another reason would be the 2.4T comes in automatic only, an easier way to slip AWD into the S60 mix than the T-5.