Much of the shifting is done in software also; for example on my car I can't go from 'drive' to 'reverse' if I'm driving too fast, and I'm not sure if moving th

Much of the shifting is done in software also; for example on my car I can't go from 'drive' to 'reverse' if I'm driving too fast, and I'm not sure if moving the shift stick into neutral has any mechanical effects or if that too is just a signal to the controller who then (electronically) drives the gear box. Which makes sense I guess from the point of preventing damage, but it does cause the software to become a single point of failure.