Keep the car. People will say you don't need a car in Boston but this isn't true anymore. You're better off driving than taking the T. It's safer to drive in Boston than to take the T. I'd personally take the hit and pay $500 a month to not ride on that sorry excuse for a transit system. After all is said and done, you'll realize that living in Boston isn't worth the time and money and you'll figure out that living in the suburbs is a much better way to go. The place is just not the same anymore.