"There must be other ways, even better ways to control a car, especially electric cars. Why have no different methods of controls ever caught on? Even secondary controls like indicators and lights seem to be controlled in a similar way in most cars."
It's a fair question, but alongside it one should also ask 'Is there something the new idea can achieve that the current one can't?' Maybe my imagination is limited, but for the life of me I can't see what a joystick or tiller can do that a steering wheel can't.
It's the failure to ask that question that leads to answers to non-existent problems, such as the EPB.
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