Quote:
Originally Posted by Jordanwolf
As far as I know, most if not all 4WD vehicles have the ability to turn off the 4WD and go to 2WD, unlike an AWD system.
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That is indeed the definition of the difference between "4WD" and "AWD". Technically all AWD vehicles are 4WD but in order to market the difference they sort of split them.
I believe that the 4WD/AWD split was sort of established back in the day when to switch over your 4WD vehicle you had to stop, get out, lock on the front hubs and then get back in and drive. That process of course went away with the automatic or electronic systems but the definition stayed.