After trying to sell us five different forms of insurance and pressuring us to upgrade to a bigger car, the agent told me I needed proof of liability insurance--which I didn't have with me. Who carries proof of liability insurance on their person? Furthermore, why didn't he ask me this before wasting my time trying to get me to upgrade the car? I finally lost my patience and canceled the reservation (which I had made on Priceline, by the way). Make sure you check their policy BEFORE you waste your time driving to the airport., I will NEVER AGAIN attempt to rent a car from Advantage. I would leave NO STARS if possible.