Out of all the popular cities in Spain, Alicante is the cheapest city to rent a car in at just C$ 2/day. Renting a car in Alicante is 85% cheaper than renting one in Arrecife where the per day rate is around C$ 17. Other fairly inexpensive cities in Spain to get a rental car in are: Madrid (C$ 3/day), Málaga (C$ 4/day), and Barcelona (C$ 5/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$ 5/day on their transportation. The most popular city to rent a car in Spain is Barcelona.