Hello. Fuel mileage has been about 22 overall. Still new, though, only 450 miles. I think the car needs to break in more before I can be sure. As for power, I dont have much to compare to. It has plenty of passing power,. The only other I test drove was the BMW X5 6 cyl. The BMW was faster but got worst mileage. Overall, car drives really nice with a little more power than needed. Everything is "volvo likable" except those cheap plastic door handles. Is there somewhere that sells replacements? I dont see why they put those cheap looking things in there instead of making them from wood, which would have looked 100x better.