We pulled a 4400# braked camper this summer without event. The only real qualm I have with this Rover is that it doesn't get a diesel in the States. That extra torque would have made the trip much easier. The manual shifter made it easier in the Texas Hill Country, though I shifted more often than I cared to. I only left it in full-auto when roads became more flat. Fuel economy dropped from meh to really?
I regularly pull a 16' flatbed trailer we've had for a decade. It's about a half-ton or so, but I don't even notice it when pulled with the Rover. Our V6 4Runner barely notices it when empty as well, though the payload is maxed before reaching the towing limit of either vehicle. The LR3's 4WD makes it that much easier to pull off-road, wish I'd opted for that on the Toyota too.