From what I have found with an internet search there isn't much difference in mileage, maybe 2 or 3 mpg between 4 and 6 cyl 4WD models. That means the 6 cyl will cost a couple of hundred dollars more in fuel per year, in my opinion not enough to worry about. I think even with the higher purchase price of the V6 it is still well worth the extra money, plus it will have a higher resale value. The V6 would definitely be more drivable due to the extra power and a lot more fun.