I've got an old 52 reg Honda CRV that happily pulls my 6m, 1.5t Ribeye. It does bounce a little over the bigger bumps but it's great in all respects. It's only 4 wheel drive when it senses the front wheels slipping too so saves a bit of fuel.
I have however just bought a Disco3 and may be looking to get rid of the CRV (not decided yet) but that's for other reasons, not that it can't pull the boat.
There's weather out there - must be time to RIB!
(Or dive, or ref rugby, or.......)