[RM7]

I got a friend with a 718 they just bought with the 6cyl and it died on them, got it checked out, bad rings in a cylinder and recommended full rebuild.

Part of this though is the 10 year old used car. You buy a 10 year old used car or older...expect issues. People tend to have a nostalgic view of cars they owned they bought new or somewhere much closer to. In many cases, you are going to be dumping money into it. I've had a few used cars and more than a few had notable issues...issues that could be or were fixed, but I've kind of learned that lesson, that more than 10 years old is going to be a "mechanics special" in many ways, whether you do the work or someone else does.

Properly maintained, a Porsche will do great at the track and you can beat it over and over.