So I just picked up a Winnebago Micro Mini 1800BH which is a 7' wide trailer, and the ZR2 diesel tows it absolutely beautifully. Have been drooling over the Australian camper trailers like ZoneRV, etc. But I know realistically there's no place to take those things in Canada (every off-road trail is simply too narrow) and you'd just get stuck all the time anyway (they weight about twice what a conventional American camper trailer does). So this is a nice looking soft-road compromise with pretty decent tires and suspension. Anyway...
Our first trip we went to Alonguin, a few hundred KM, some rolling hills. It can pull at 65 mph quite easily getting between 13-15 MPG. At 55 mph I'm getting 15-18 MPG which is absolutely incredible. I know guys with gas jeeps that get that not towing anything at all.
Previously I had an Apex 235BHS that was 7.5 feet wide and 23' long. It pulled that quite fine, WAY better than my Nissan Frontier did! But I do prefer this little Micro Mini. It's just so easy. Don't even need extended mirrors!
(Picture in the middle of my Australian-style canopy build.)
The mircominnie has been on my radar for a while now. I really like them. That extra 1' of width is a big deal.
My dad bought a 2100BH and has a Ford Expedition that is almost idential in specs to my 2014 F150 and his will get 1-2mpg better due to his trailer being 1' narrower than mine.