OK this is a big ask I know !, we are a family of 4 from Australia, kids age 15, 16, we have never seen snow before and looking forward to having a snow fight, we are visiting my sister in Texas, now this is the problem, We only have 5 days for a road trip at the end of our stay in USA, we leave LA at 1030pm on the 18th Jan, what to do!!!. we would love to drive San Fran to LA I would like to see Yosemety, see some snow but not be rushed, never driven on icey roads before. I understand that weather has a lot to do with things so I guess what I'm asking is how can we get the most out off this without possible weather restrictions. An Rv sounds great but I dont wish to waste time washing and cleaning vehicle at end as I think this could easily take a half a day. On the day we leave we would see Universal studios