Out of all the popular cities in Spain, Málaga is the cheapest city to rent a car in at just C$ 6/day. Renting a car in Málaga is 58% cheaper than renting one in Palma de Mallorca where the per day rate is around C$ 14. Other fairly inexpensive cities in Spain to get a rental car in are: Bilbao (C$ 7/day), Alicante (C$ 8/day), and Valencia (C$ 9/day). While these cities typically have cheaper prices than the rest of the country, travelers looking to rent a car in Barcelona should expect to spend around C$ 11/day on their transportation. The most popular city to rent a car in Spain is Barcelona.