Having gone down to 1 car between the 2 of us for a while now, this didn't contain a lot of new ground -- but it's still a big step to go down to no car, even in a transit-friendly area. One thing the book does well is really driving home the financial point -- the money saved, that can be redeployed elsewhere, as well as side benefits such as improved health, even social situations, as you reach out to people more to share transportation.