Automatic tow bar - GIF

[Frank S]

The one I built for a guy in St Louis about 25 years ago was only 3" in height when flat on the ground I made it to slip over the forks of his forklift to move cars around in his garage
Yhose tow rigs have been around for a long time. Both the ones like in the vid and the ones that swing lock arms from the outside that way it doesn't go under the engine at all
I didn't make mine full automatic and you could either use it from between the wheels or from the outside
here are some jpegs of the drawings