A friend of mine was on an airplane talking to a guy who was in the self-driving car industry.  They got to talking and my friend asked this person where their test track was.  he said Las Vegas.  My friend asked how their cars did in the snow.  The guy laughed and said, "There's no snow in Las Vegas".  My friend responded, "So there's no possibility of any of your eventual customers taking one of these up to Tahoe".  The guy was completely stumped by this question.