A few years ago while driving/moving from IL back to CA, I saw a Polaris Slingshot towing a U-Haul trailer across Illinois, Iowa and then we saw it again in Nebraska later that day. It was awesome!!

I probably have a picture if anyone really wants to see (I am definitely a car spotter)

Sounds like some American car brands protect their interests here. ;) I have even seen Smart cars towing (small) trailers here in The Netherlands, although that's extreme. But even today I helped a woman coupling a one-axle trailer (3mtr long) to her VW Polo, which is pretty common to see.