Yes, you could do that in midsized cities with underdeveloped public transport.
Because there you would need a car, esp. when buying bigger stuff.
But for big cities trains are much better and cheaper.
But for big cities trains are much better and cheaper.
You could rent your car back to the system to use as a lounge for people who want to travel but didn't bring a car to get on the network. Saves you parking costs, maybe an operator could work out paying you for that.