For all of those considering Goldcar, it is AWFUL and have ZERO FLEXIBILITY- STAY AWAY. First of all, IT IS NOT LESS EXPENSIVE than other companies - bizarre petrol policy and all sorts if extras. Also, BE CAREFUL as they are LOCATED OUTSIDE MOST AIRPORTS, a drag if you have loads of baggage or small children. And a HUGE DRAWBACK is that they DO NOT LET YOU EXTEND THE RENTAL PERIOD ONLINE, SO YOU HAVE TO GO IN PERSON TO THE DROPOFF LOCATION to do so; terrible if you make last minute changes and happen to be far from the place where you picked the car up.
I WOULD NOT RECOMMEND THIS COMPANY TO ANYONE. as a whole my experience was horrible. I rented from them in Rome Fiumicino and it is the first and last time I do so. Stick to the old rental companies, they offer far better service.