To use an example from a German city: Because going from the park+ride spaces at the edge of the city to the center takes > 45min by car, but 4min with the trai

To use an example from a German city: Because going from the park+ride spaces at the edge of the city to the center takes > 45min by car, but 4min with the train. And parking at the edge of the city is free, but downtown you pay 8,50€/h.