Chatted with a couple of Philly Car Share employees I know over the weekend, and that is roughly the number of members/cars they have. Recently they've been adding about 1200 members per month (IIRC)
The basic idea is that people who don't use their car to commute just don't need a car very often, though they do want to have access to one.
I'm curious about how many of these people would otherwise have an additional car for their household, that is how many people have effectively reduced their car ownership due to the service as opposed to those who just improved on their car free existence.
