3. Now less thirsty
The main reason for the new family of engines is improved fuel economy. The XC60 T5 Drive-E FWD is official rated at 24 mpg in the city and 31 mpg on the highway. That is a huge improvement over the 2014 XC60 3.2-liter FWD with ratings of 18 mpg city and 26 mpg highway.
The 2015 XC60 T6 Drive-E FWD is only slightly thirstier than the T5 with official ratings of 22 mpg city and 30 mpg highway. Compared to the current T6 AWD XC60, that is an improvement of 5 mpg city and 6 mpg highway.
During our short city based drive with the vehicle, we were a bit heavy on the gas and returned just 23.2 mpg.