Rent-a-Car is an online search and booking service for renting cars without a driver in Spain. It helps travelers compare available vehicles, prices, and rental options across destinations including Barcelona, Madrid, Valencia, Málaga, Alicante, Ibiza, and Tenerife. The site lists vehicles from major manufacturers and offers choices ranging from compact and mid-size cars to crossovers, luxury models, convertibles, and minivans. Listings show details such as transmission, model year, mileage terms, insurance, deposit, and daily price; examples include Toyota, Fiat, SEAT, Audi, Volkswagen, Ford, and Hyundai vehicles.

Customers can filter searches by dates, location, vehicle features, payment methods, insurance, deposit requirements, and driver criteria. Optional equipment such as child seats, Wi-Fi devices, and additional drivers may also be available. Some rentals offer benefits including cash payment, no credit card requirement, unlimited mileage, or free cancellation, depending on the vehicle and terms. The service supports delivery at selected airports, train stations, and city locations, and provides information about rental conditions, Spanish traffic rules, frequently asked questions, and customer reviews.