Car rental in Quad City International Airport. Check our car rental prices in Quad City International Airport in order to enjoy the best service with the cheapest prices. Car rental fleet in Quad City International Airport which is frequently renewed, being maximum from 6 to 12 months old, all inclusive prices (unlimited mileage, insurance and tax) and a dedicated customer service are some of the advantages that you will have when you hire a car in Quad City International Airport with us.