I did the SEARCH and it turns out that the project was abandoned. Basically because the idea used two SLK hitch components which had to be butchered up. Lot's of money wasted. In any event, the thing was a NO GO.

However, I did have a hitch specialist in town look at it, and YES it could be done using off-the-shelf parts and a little welding. The concept basically used two standard hitch receivers installed at the diffuser areas, hung from the frame and the trunk belly (with reinforcement), and then yoked into one ball hitch. Pretty slick. The guy said he would do it for around $500, basically twice the price of a standard hitch.

The caveat is that he would rate the custom hitch for ZERO pounds, just to cover his a$$.

But it can be done.