I rented a Passat wagon from Thrifty Car Rental for use during a medical conference.  On my way to the Phoenix Mayo conference, the temperature outdoors was 88 degrees, but the fan on the car would not work to blow outside air or AC.  My wife offered to drive the car back to the rental site, but Thrifty refused to allow this because I had rented it; in fact, in the beginning, they even wouldn't discuss the car with her, saying I had to leave my conference to talk to them.  The site was one hour from the medical conference, and they were not open outside of the hours of the conference.  Thrifty said the car was usable, so they were unable to be of any assistance.  Thrifty's rates might be a little less sometimes, but the inconvenience and lack of customer service makes their rates costly.  \n\nWe rent cars frequently.  Enterprise has had the best customer service and comparable rates.  Thrifty will never get my business again;