I had that happen once. I rebuilt my Rochester Quadrajet and it purred like a kitten for a decade. I eventually gave that car to my friends that had a similar model to use for parts, but it was the best car I ever had. Chevy Caprice Classic, former undercover cop car with a 350 and a shift kit.

I certainly miss those days. Working on my current vehicle is a PITA. The fuel rails, coils and plugs take hours to change. On my old car, I could do that in 15 minutes even if the engine was hot. I can't even imagine how proprietary the components on a Tesla must be or how difficult it will be to fix myself.