To say the current roster of cars you'll find in a Porsche dealershup is expansive is like saying last week’s storm in Toronto was just a little bit rainy. While there are just six models, most of them have a dizzying array of variants. The volume-selling Macan, for example, has eight different trims across gas and electric powertrains; while its big brother Cayenne claims no fewer than nineteen different trims when counting gas and electric ver…