I "mis-started" my car this morning (let go of the key too quickly and it barely had enough inertia to crank the engine) and the car sounded terrible. It now sounds like a diesel tractor and has zero power. It can barely keep itself from stalling.
I've also had an exhaust leak in the vicinity of the cat for a while. It got a lot worse this morning.
I suspect that a broken cat may be causing my engine issues. Is this reasonable?