I'm a user of zipcar for over 8 years and a local resident. I don't see why I can't park the flex car close to where I live, I pay the same as anyone else as a resident in Southwark. The car is taxed, insured and has mot. I once owned a car but wasn't being used often enough. London transport is great but not always reliable and can never replace my need occasionally transport myself and things more effectively. If a CPZ was introduced and a zipcar bay wasn't close by I'd end up buying another car to park in the same spot.