Like CharlieB, we're doing San Fran to Vegas later this year (August). I've been trying to find something that will comfortably fit 6 people in a 2+2+2 configuration (so everyone gets a window seat) AND has enough room to accommodate 6 suitcases behind the 3rd row of seats. The only vehicles I've found that meet these requirements (other than large vans) are the "Premium SUVs", such as the GMC Yukon XL or Chevy Suburban. The problem is that no one is prepared to rent me one of these for a one way rental. I've tried every website I can find, and I've phoned all 8 car rental offices at San Francisco airport, and the biggest SUV anyone will rent me is the Ford Expedition (the standard version, not the longer "EL" model). The problem is that the luggage capacity on a Yukon is 45.8 cu.ft. whereas the Expedition is only 18.6 cu.ft. The only other option is a Toyota Sienna minivan, which allegedly has a luggage capacity (behind the 3rd row) of 43.6 cu.ft. but, having seen photos of the vehicle, I find that hard to believe (though I'd be happy to be proved wrong). In the meantime, I'm stuck! The flights are booked; all the hotels along the way are booked, but I don't have a car. I must admit that I wasn't expecting it to be so hard to get a suitable vehicle for the trip. Any advice would be appreciated.