>>28615213 (OP)
I own a BMW F26 X4 and Porsche 992.1 4GTS (pic related)
They are very different cars and serve different purposes for me. Build quality wise I have to give the edge to the BMW. Driving quality goes to Porsche.
I've put 125.000 miles on the bmw and although the car most definitely looks used it has kept up well and I've only ever had to do standard maintenance on it.
On the other hand there are a bunch of squeaks and noises on the interior of the porsche. I had a lot of wind noise coming from the sunroof which had to be adjusted and after 10.000 miles an injector failed which just got fixed after diagnosis and repair took 2 weeks (adding to the month i had to wait for the appointment at the dealer)
On the upside its a great sports car that is also comfortable for long drives, weekend trips, looks understated and fits me at 6'5.
I'd recommend a good pre owned BMW to everyone. The Porsche, although I don't fully regret buying it, is not really worth the price and insane upkeep in my opinion.