If you live in Boston proper, like Beacon Hill or the BackBay, it can be very expensive, especially if you own a car.
Rents in these areas can run from $1000 /month for a studio to $3000/month for a nonfurnished 2 bedroom.
As far as a car is concerned, you'll have to find a parking place for it. Right now, parking spaces can be bought for anywhere from $50,000 to $200,000+, like ordinary (!) real estate.
If you live in Boston, don't own a car, and take public transportation, unless you're really rich and can afford to buy a car space either on the street or in a garage.
If you move to the suburbs around Boston, like Cambridge or Sommerville, etc, the rents are cheaper, the number of students increases and car spaces are less of a problem.