When I saw the title I thought you were seeking a medical opinion.

It is strong enough, but for cosmetics you might want to make it look more substantial. I would take some flat stock and make a triangular gusset on each side and punch it full of lightning holes to give it that racey look like the rest of your car. You could taper the plates to extend out maybe 8 inches or so forward. Once painted the same as the tongue it would look pretty good IMO.

Nice trailer idea.

Don