Thanks for your generous help! I have a few more questions:
1. I believed that the cancellation policy is 48 hrs before pick-up time, so could you clarify on how you can cancel your second reservation on the spot?
2. What is the rough percentage chance that there will be 4WDs in the standard SUV stack?
3. Generally how much would the upgrade from midsize car to standard or full-size SUV cost? If it's cheap it might be the better option, and saves the hassle of making 2 bookings online