I also went with the 20" staggered ( 265/275 ) Nokian WR G3 SUV tires on my P90D. Here in Salt Lake City Utah, we have had a significant amount of snow and ice this winter. The WRG3s have exceeded my expectations greatly! I have noticed no difference in power consumption, but will say that they are a little louder at low speeds than the OEM summer tires. At highway speeds, sound is about the same. Nokian doesn't kill you on the mile warranty for having a staggered setup. 50,000 on fronts and 25,000 for rear. These tires are made to use in all weather and year round, so I might just keep them on until they wear out. If anyone in the Salt Lake Valley area is interested, PM me for info on where I got them-I'm friends with the manager and he will give you a great deal on this or whatever tire you want.