Unfortunately, you may not park in the signed "car share vehicle only" car spaces that you may see around the streets.
Those car spaces have been installed by Council, usually in return for payment, by agreement with a corporate car-share company (e.g. GoGet or GreenShareCar).
They are specifically assigned to that car share operator, and are for use by a particular vehicle in their fleet.
Want to start some change in your neighbourhood?
You can contact your local councillor and ask them whether they've considered allocating car sharing spaces to peer-to-peer car sharers - if you'd like a hand, drop us a line at firstname.lastname@example.org