For car hire at Gibraltar airport we use locally based companies on the Spanish side of the border at La Linea, a short walk from Gibraltar airport terminal.  For your convenience cars are actually collected and returned on the Spanish side of the border at La Linea, so no hassles with the customs men and no queuing to leave Gibraltar. 

This simple booking system will quote you the rates then allow you to carry on and complete your booking. Our recommendation would be to elect for the cars with Zero Insurance Excess as this makes it simple and uncomplicated.  Representatives meet your flight and take you to the car.