I've always thought it would be neat to combine the public transport with the public car idea. Have parking lots full of public cars available at the station st

I've always thought it would be neat to combine the public transport with the public car idea. Have parking lots full of public cars available at the station stops (and really big ones at the end of the subway line). You'll have to be able to keep one of these public cars at your place overnight for it to work (unless it drives itself home empty!).