I am planning a road trip through the west coast USA in December 2014/January 2015 with my family. We are looking at travelling from LA to San Antonio, Texas (or the other way around) and would like to see San Diego, Las Vegas, Grand Canyon, Yosemite. We were thinking of hiring an RV but someone suggested hiring a car and staying in motels might be cheaper. We're a bit wary of hotels and if we go that option would be looking at needing at least 1 separate bedroom. Can anyone offer any suggestions? We'll have around 2 or 3 weeks to do the trip. Thanks!