It is easy to look at an individual, and say that costs are lower, especially if you doctor the numbers to assume everyone lives in New York City with high parking rates.
But that is only looking at part of the picture.
A fair comparison would included taxes paid to the city and state, and would include an assessment of what would happen if a majority of individuals started using public transportation for their given locale.
One must include car parking costs for park-and-ride lots, because not everyone can walk to a train station or bus stop.
One must include additional travel time costs, because public transportation is often slower than direct travel via car.
I'm not arguing for, or against, public transportation.
I only ask for a fair comparison.