Actually saw similar type of set up years ago in a Nanaimo ferry line up . Boat was a little further back and on more of an angle with bow highest point. Not sure of what is and isn't legal but physically allows to tow another vehicle, tent trailer or even a second boat behind you (some boat shippers do this ). Not only allows more to be towed but with the trailer not having mileage put on it, is a benefit to a customer having a trailer shipped that way.