If the car is not booked by another client, then an extension is possible. But, if your rented car is already reserved by another client, we will not be able to extend the rental period. However, it is possible to exchange the rented car for any other available car model. If you exchange for a car in the same price range and category, the rent will remain the same. When exchanging from a lower to a higher price range or vice versa, rental rates will be adjusted accordingly.