So I've used both hotwire and priceline for hotels before but never for a car. I'm wondering, are they as good when it comes to renting cars? Do the cars come with unlimited mileage? I'll be doing lots of driving in state and to one side state. Can i get a compact car for less than $20 a day with taxes and other fees included? I'm in phx, az. Looking for june 25- June 29 as my rental period. Thanks for any help.