Madrid has an electric car hire service called car2go, which offers you a fleet of 500 electric cars (Smart ForTwo Electric Drive automatic transmission) throughout the city centre (inside the area delimited by the M-30 motorway).
How the service works:
Make your way up to the observation deck and enjoy a stunning view of the city.
Climb on board and discover the city in a panoramic format.
Visit more than 50 museums and enjoy numerous discounts.