I saw this some time back on a email, towing from the roof? dont think so , wouldn,t be long & you would have a toppless car & no trailer.LOL If it could be made successful then it would eliminate the need for that front towbar that was asked about.just a gimmick.
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Be your self; there's no body better qualified ! "I came into this world with nothing , I still have most of it"
It could probably be made to work OK on a 2 door ute. Suitable frame and hitch could be made up to pivot on the front of the tray, just above the roof ! Certainly make it easier for parking and turning in tight spots !!