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I'll give you my usual Porsche-guy answer. If you have to ask, you're likely not ready. You need to do like most/all of us have done. Visit the dealership, sit in the cars. look in the frunk, evaluate the interior space - then determine if you're ready, and willing, to live with it. When YOU decide it's the right car for you, then make your move. There is NO comparison between a BMW and a Porsche - none. If those are the two you're deciding between, you're too far off. Good luck.
I can do a weeks groceries no problem. If you fold down the rear seats, you use the parcel shelf for further room. I can fit 2 sets of golf clubs back there.
You have the passenger area. All the back seat area plus the trunk. I shop large from Costco in mine with no problem. Now the airport 'alone' would be ok. Two of you, that would be a 'no no'. I would not even consider putting a roof rack on mine. I use a van to the airport.
I'll give you my usual Porsche-guy answer. If you have to ask, you're likely not ready. You need to do like most/all of us have done. Visit the dealership, sit in the cars. look in the frunk, evaluate the interior space - then determine if you're ready, and willing, to live with it. When YOU decide it's the right car for you, then make your move. There is NO comparison between a BMW and a Porsche - none. If those are the two you're deciding between, you're too far off. Good luck.