I have posted our satisfaction with the Rav.last year. The Rav is rated at 3400. V6 with towing pkg. We tow a casita
SD 16'. We have put on 3000miles towing. From our perspective the Rav is fine up to around 2600lbs loaded. I would not go with more weight
or any longer trailer. We can haul at 60mph all day no trouble, no gear searching etc. We have put air bag helper shocks to level trailer. The Rav seems well matched for our trailer and handling is good, we use a single bar stabelizer.and are getting 20mpg towing and 26 to 28mpg without trailer. We had a Chevy Tahoe v8 which was over kill and with 14mpgtowing and 15mpg the rest of the time it didn't make sense. The real problem was the repairs of 500 to 600 dollars a year on the Tahoe. Very satisfied with the Rav. after 3years.