This is true but we still got Moore/Joplin that went through more highly densed area yet vehicles tossed everywhere. Actually we don't need tornados that strong. Jonesboro also had quite a few impressive vehicle damage in urban area. In EF5 tornados, even for these vehicles that not moved, they are bombarded by debrises with large dents everywhere in its body, which I didn't see much in Cambridge. Besides, Mayfield didn't toss vehicle long distance in more open field with less building collision.In this area what likely happened to the vehicles was they collided with houses & that likely damaged them much more and is likely one reason they didn't travel as far as in other EF5-type tornadoes.