I'm not towing in excess of 1000 lbs., the boat and trailer is definately less than 1000 lbs. I know it's a car, I'm not hauling loads of wood or anything like that. My point is, the manual says it's ok for the SE and GT models to pull up to 1000 lbs. while towing with the GTP isn't recommended at all. I'm curious to why that is.