Do keep in mind that they do have to do the PDI, so that will add miles. In my case, my car had ~115 when I first started test driving it and was up to about 220 by the time I signed the dotted line. As I understand it, warranty coverage is +100K miles from when the owner takes delivery.
Just really strange these have that miles on them. I am thinking it's because it's a new model and people wanted to just drive them and see what they are like. My suv had 10 miles on it when I bought it. Other cars that I bought were about the same to so it's just odd to me