You didn't read the headline wrong.
I often research campers and how much my Ford Escape can pull... which is just enough to not be enough lol.
Sometimes you see people with normal cars towing a jet ski or something. It's not impossible just unlikely.
In this case the man made a side car for his horse. Why not? Watch the video and see for yourself. You probably won't see an odder, safe for work, thing today...