My biased opinion is, yes its worth the extra cost. To me it really came down to having extra grip, especially in the wet, as well as possibly using it for low level off road use. But it depends on what you plan to use it for. If its general use as a people mover then 2WD might be the best way to go. The AWD is constant AWD theres no option to lock unlock etc, its always there. I believe it uses a little more petrol about 0.6l/100km or so they say. We get on average about 12 - 14l /100 km with ours and thats running around in Sydney. I beleive because of the high power of the car the 2WD experiences quite a bit of torque steer when you use your horses. If you like the idea of AWD and can afford it, get it, otherwise youll always be wondering later on.