Car-Rent.com compares the prices of well-known car rental companies in Spain, including the following location: Madrid Barajas Airport
The airport of the Spanish capital city is called, Adolfo Suárez Madrid–Barajas Airport (in Spanish: Adolfo Suárez Madrid–Barajas Airport). It is the largest airport in Spain and the third busiest in Europe. In the terminal building itself, an enormous mural can be seen by the Ecuadorian Artist and Sculptor, Oswaldo Guayasamín. The 120 meter long mural is dedicated to Spain and Spanish America.
The airport of Madrid is designated by the aviation industry with the IATA code MAD and the ICAO code is LEMD. With regards to the Wikipedia article over Madrid Airport, the airport has four take-off and landing runways.
At the time of writing this, there are four car rental companies who have offices situated at Madrid Airport: Avis, Europcar, Hertz and National Atesa.
The airport's official website can be found via the following address link: Madrid Airport