Its been a while since you got an update here, got an interesting topic to talk about here. The most challenging highways in America. I recent went to the States, drove around too, definitely the most fun I had driving was on the state and national highways. The state highways for their beauty and the national highways for the amazing speeds you run up there.
I drove my brother’s car in the US along a great many highways, but unfortunately on none of the below ,well there is always next time, till then enjoy the list and if you are nearby, take your AWD for an adventure.