Our North Sea fleet includes compact cars, sedans, convertibles, station wagons, minivans and SUVs. We also offer a selection of luxury and exotic cars. When selecting your North Sea car rental, include some add-ons to have a smooth ride. Some extras that you can add are child seats, an additional driver, GPS, prepaid fuel, extra protection, and even winter equipment. In addition, SIXT gives you flexibility with an option to book a weekend rental car if you need it just for a short getaway or a weekly rental car if you’re planning to spend more time in the area.