I have a 3500 lb boat so was getting a hitch for either the Volvo V70R or the V8. Checked the V8 specs: 1500 or 2500lbs on brakes, tongue 150 lbs (or thereabouts) is surprisingly low. I think the Porsche 928 can tow more. Volvo does 3500 lbs for a trailer on brakes. So it can two the ski boat. Must be a brakes issue for the V8. Certainly has the power to haul.