I have owned so many different AMG and Porsche models that it is a pleasure to say that I am finally driving an AMG that is a better driver's car than its Porsche counterpart. My experience with both cars tells me that the Macan turbo may have a slight edge in a straight line, but it still feels heavy and truckish compared to my GLA 45. If you have a fairly loaded 45, a comparably equipped Macan turbo would be at least $20k more and even though the Porsche's interior is higher standard, i can't get past the price differential. Spend another $2,500 on a Renntech piggy-back as I did on my CLA 45 and you will spank the Porsche.