We have an all-aluminum hybrid trailer, which makes the weight a lot less since there is no wood at all, but also is more expensive. We own a Livin Lite brand VRV (versatile recreation vehicle), it's more of a "toyhauler" type of RV. The Livin Lite brand also makes pop-ups and regular campers, and truck campers - all all-aluminum. The VRV toyhauler split off into it's own brand recently. But you can do a search and read up about it.
We tow with a Honda Pilot, with 4,500 capacity - I feel like it barely makes it. Our dryweight of the trailer is like 2,200, so very light. We have 4 kids, so lots of crap, and they're bigger now so bikes are bigger, more food packed, we stay out longer so more gear for longer trips, etc. We had minivans before this and looked into towing w/ it, but we decided to move to Pilot for that 8th seat and also upgrade towing. But vacationing on very hilly or mountain terrain we can feel the Honda towing the trailer. On flat it's not a big deal, but inclines we can tell.