Here is the story of a man who wasn't content with his fun to drive, 400-odd horsepower Supra, and how he turned it into an undrivable, always-broken 900+ horsepower Supra.
He explains in the video that he was always looking for something more, and never satisfied with what he had. And once he realized he'd gone too far and kind of ruined the car of his dreams, he learned a lesson.
It's important to be content with what you have, and chasing something you'll never attain is a quick road to unhappiness. That's not just a lesson in tuning cars, that's a lesson for life.
So what lesson has your car taught you?
(Hat tip to Supercharger Heaven!)