We rented a Goldcar car for ten days in November 2010 from Malaga, Spain and paid in advance. No fuss, no problems. When you pick up the car they charge your credit card for the price of a full tank, in my case 81 euro's but you can return the car (almost) empty. When you compare prices you have to correct for this fuel policy, but in our case it still was a good deal. read full review »