Ask yourself this question, does extra drag cause a loss in performance?Does the front shaft spin reduce overall performance of the vehicle?
Interestingly, Consumer Reports rated the 2WD frontier MUCH higher than the 4x4 version in performance (4x4 was a little below average).
To me it seems that having 4x4 would decrease overall performance while using 2wd, but I don't know how it all works and it may be more complicated than than it appears.Ask yourself this question, does extra drag cause a loss in performance?
Does a stick brake pad cause your vehicle to slow?
I also have to ask why is the Consumer Reports report interesting? Mostly all 4wd trucks weigh more then the 2wd versions. Then the 4wd can't be used on dry roads since it causes binding in the Tcase/Diff/etc...