There are examples of this, yes [0]. The phrase "run . . . on Tesla" might have different meanings. OpenPilot is not installed directly on the Tesla hardware (as far as I'm aware). OpenPilot runs on separate hardware that communicates over the car's network, typically CAN bus [1]. An analogy might be attaching USB devices to a laptop, which has its own video, sound, keyboard, and pointer; but for which a user might desire some other feedback and control method.