I think there is a mechanical linkage in almost all manual cars. For the steering there absolutely is, almost no cars are actually drive-by-wire in that sense.

I think there is a mechanical linkage in almost all manual cars. For the steering there absolutely is, almost no cars are actually drive-by-wire in that sense. You probably won't be able to do anything with the car with no power though, because everything has electrically actuated mechanical lockouts, and the engine won't work because it uses an ECU.