Take full advantage of our add-ons and extras when booking your Sofia delivery service car rental. Young driver? No problem. Arrange our comprehensive insurance package for the under twenty-fives. If you are transporting young children, then we can supply child seats to ensure that your little ones are kept safe. Roadside assistance is also included with every car hire from Sofia delivery service rentals, therefore, you don't have to worry about breaking down. Our unlimited mileage policy also ensures that you can tour this fabulous region without worrying whether you are clocking up the miles. Please note, however, that while Sixt is able to guarantee the category of the car, we are unable to guarantee the model. Book your car hire with Sofia deliver service today.