We saw a Toyota 4 Runner flip on the 40 last year heading out to Laughlin. It was right in front of us and went over about 8 times. Two adults and two kids inside. One adult and one child were airlifted and the other two went by ground. Everybody survived, luckily for them one of my passengers was a trauma nurse and they got the necessary care until help could arrive. I got some pics I'll try to post.