Cheap Car Rentals in Zemun, Belgrade from S$ 23

Long waiting for pick-up, nobody was present, got a too smal car where we could not put our luggage, my fellow passenger had to keep one big bag on the lap, when mentioned that to the staff, very rude answer there is nothing else with the explanation that the system allows more bookings then the number of the available cars, at drop off again nobody, all in all very bad experience and no excuses from any of the staff whatsoever