I agree that Porsche marketing overstates Macan's sports car image, but the car should sell well as a small performance oriented SUV.  It will be more practical than an M4 coupe, and more sporty than the SQ5. 

In my area of the US, however, I think buyers will be buyers who simply want the convenience of an SUV, without the bulk and fuel requirements of a larger one.  Porsche's image--which is deservedly unique and attractive, will add to the decision.

And , as far as the comment that the Macan is only another life-style SUV, almost every luxury car is a life-style choice.