The local council has completed a two-year trial using five vehicles from Edinburgh City Car Club but has agreed to boost this to nine by the end of this year.
The vehicles are used by council staff as pool cars and could be an indication that car clubs are gaining popularity.
Chas Ball, joint managing director of Smart Moves, the group behind the scheme, said: ‘The new arrangement with the City of Edinburgh Council increases the number of cars used as fleet cars, and the number of staff who can have access to the cars in the course of their work.
‘The arrangement helps the council manage its fleet use and will contribute savings by improving the efficiency of vehicle utilisation and providing more data on how cars are being used.’
Edinburgh City Car Club, which has more than 400 members, has added three new locations to its portfolio, making it the UK’s largest car club.
The increase has been introduced following a surge in membership and a growing demand for car sharing in the city. Smart Moves is also considering three further locations in Edinburgh as part of its expansion drive.