The availability of optional extras depends on the car rental agent in Semlin and even if they are booked online they are not guaranteed. The following extras can be booked on Autoprio.com: Infant child seat, GPS – Satellite Navigational System, Roof Rack, Wi-Fi Access, Booster seat, Child toddler seat, Luggage racks, Electronic toll pass, Ski Rack, Additional driver, Snow Chain Set and Snow Tyres. Please note that most of the optional extras are not included in the rental price and can be purchased at the time of booking or at the rental desk in Semlin. The cost of the optional extras are displayed at time of booking in the Rental Conditions.