Like others here I've been lucky enough to own and/or drive most of my bucket-list autos, including various American muscle cars, British sports cars and 911's, including my current '87 911.
This is probably because my list is somewhat grounded in reality. As much as I may admire a Duesenberg SJ, M-B 540K and 300SL, Porsche 935 and 959, those are things to be admired like
objets d'art.
The only one on my list that I have neither owned nor driven is a Mercedes-Benz 280SE Cabrio (W111/112), preferably a 3.5L.