For what it is worth. About 20 years ago I had
U-Hual install one on my 1980 300D.

Attaches to the bumber and the spare tire tub.

Then bought the trailer ligth hookup that is in the trunk and tapped into my
tail and turn signals.

All together - 20 years ago - $100.

It works fine. Have pulled plenty of things, including another car (a short distance).

Many folks on here don't like this kind of hitch, but it worked for me.

__________________
80 300D 340K Owned 30 yrs
83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day
02 Z71 Suburban 117,000
15 Toyota Prius 2600 miles
00 Harley Sportster 24k
09 Yamaha R6
03 Ninja 250