Yes, but isn't it more about the message? "We can get anyone, anywhere, and get away with it?" If nobody knows it was them, does it then work for making an example out of someone?
Can't you also make it look like an accident by physically tampering with the car?
Yes, though your assets may end up on camera tampering with the car and their physical modifications may be found. If you can do it from a drone or from the internet all digital evidence may be destroyed in the fire if you did not remotely wipe it already.