My daughter is getting a job in Sedona. Due to time commitments, she has to fly out, but will need her car. Always wanted to drive cross country, looks like this might be my chance. She has a Prius, so gas mileage will be decent. Time is a bit of an issue. Looking to do this in 4-5 days, leaving Saturday, be there by Wednesday. Done a number of 10 hour drives, but not 4 days in a row. Was thinking about 81 down to 40, as that seemed a bit more interesting that the slightly more direct route (80 to 71 to 70 etc). I know with that time frame, not a lot of time for sightseeing. Will try and hit some good roadfood, but other than that, more or less no stops. Roughly, 830a to 7:30 p of driving. Thinking day 1, roughly Roanoke, day 2 memphis, day 3, amarillo, day 4, arrive az. Would have 1 day of spare time, in case i just have to stop early. Thoughts, suggestions?