For my old situation, in the city, a Transit option would have been cheaper than a car, commute time would have been about the same. Mitigating factors would have been during inclement weather -- walking or riding to a bus stop or the subway would have been messier, and adding a bus to the mix could have lengthened the commute time. Bike commuting was the winner, where it was faster -- nearly cut my commute time in half -- and way cheaper, enough to make up for how messy it could get.

For my current situation, Transit would also be cheaper than a car, but commute time would nearly double from under an hour to nearly two hours, and it would be messier.