I don't think this is an "underdog" thread, nor do I care about the 550's capabilities - I just had one. This is my personal quest to have a very fast, yet streetable car for my pleasure. Whether others enjoy it is irrelevant. I have built a Honda Accord that used to destroy Corvettes on the track, I have also had a Monte Carlo that ran 10 sec 1/4 miles time0s. Could I have gotten the V8? yes. Did I want to deal with the issues related to the N63? not at all. So I went with the 535. Now my mission is to make it as fun to drive as I want it to be. Nothing more nothing less.
Simple question I answered for me personally was:
The weak point for the 535 is the trans, as the link showed, I can get a beefier one for less than $2500.
Now, would I rather spend that, or the $9000 it takes to replace the 550s turbo oil lines when they go bad out of CPO? For me the answer was easy. When in doubt go for fun first