I think a true car share coop model works better than a private business that doesn't have roots in the city they are operating in. The model in my city is expanding rapidly. basically you buy a share into the coop for $500 (you get this money back if you decide to leave) and then you get discounted fares for the vehicles.
I've been a CAN/Modo member for well over a decade. Having to return the car makes it drastically inferior to car2go/evo for most purposes. Definitely superior for doing a home depot run or helping someone move, though.
