I have a Trailmanor 2619 hard sided pop-up trailer. Those of you at Camp Commander in Silverton got to look first hand. It is a very interesting pop-up, 19 feet when traveling (17 when parked in garage) and 26 feet when set up. I like the hard sided trailer much better than a tent trailer for foul weather traveling, quiet inside, larger size, and significantly less set-up at the destination. Trailmanors are special built, extremely lightweight (read extremely expensive for what you get) trailers, made to be towed by mid-range SUVs.

I orginally bought the Trailmanor to go behind my 1995 Chevy S-10 V6, which only had 165hp and max tow rating of 5000lbs. Even though I only have the 4.7L V-8 in the XK, it more than handles the trailer which maxes out at just under 5000lbs fully loaded with 47gal of fresh water, 10 gal propane, and lots of gear. Hill climbing in the S-10 was a nightmare. The XK tows uphill at 65mph like the trailer isn't even there. The only exception was I had to turn off the A/C while hill climbing in almost 100 degree weather coming across the desert.

I also have a weight distributing hitch which helps with the rear end sag on the XK, especially since I am running the 2.5 inch lift. Even with the hitch, I am considering more robust rear springs due to a lot of bouncing when loaded and towing, and a little bit of remaining sag.

With my lift and tire set up, I get about 12-13mpg not towing. I got a little under 10mpg cross country from California to Colorado towing it. The trailer folds down to slightly lower than the rear of the XK, so it adds very little wind resistance. As stated above, not bad for the RV world. My parents have a 34' class A which only gets 7mpg.