Great report Gen, and it's a pleasure to come across someone else not afraid to do some serious mileage in a short space of time!
I visited the USA for the first time last November and was determined to see something of the country other than Las Vegas where I had to be for a trade show. Despite everyone telling me that I shouldn't try and do quite so many miles, I left Vegas on Monday morning, went to the Hoover Dam and then back down and drove across the Mojave, out to the coast - saw the Pacific for the first time! - visited Hearst Castle, drove up Highway One, got to drive across the Golden Gate Bridge (although I didn't have time to set foot in San Francisco), stayed with friends in Northern California and was back in Vegas for Thanksgiving dinner that Thursday. It was a blast!
I'm heading back to Vegas at the end of November, and this time I have eleven days to road trip instead of four. So, instead of planning 'on the hoof' as I did last time, I am happily spending evenings with maps spread out everywhere. So, the current plan is to go from Vegas up to Utah because I want to see the Bonneville Salt Flats, then back to Arizona and across part of Route 66 to New Mexico and possibly finish the most western part at Amarillo, before turning back south west through southern Arizona (Tombstone is a must), and up to Morgan Hill in California before heading back to Vegas...
I hate to ask idiot questions, but what is the weather like in Arizona and New Mexico in early December?