Looking at competitors: Acura Audi BMW Infiniti Land Rover Lexus Mercedes With the exception of Infiniti, every luxury SUV/CUV priced at $40,000 or higher has AWD standard. For luxury SUVs/CUVs under $40,000 (and for Infiniti) adding the AWD option costs about $1,400 - $3,100. The Model X is starting at $59,900 (after rebate) a level that ought to come standard with AWD but it does not. How high can they go in charging for AWD? I know that it involves the addition of the second motor and that it also enables many of the killer features of the Model X (fast 0-60 time, tight turning radius, best AWD performance, better range / more regen) but I don't think this option should be more than $5,000.