it tows my boat once in a while, tows my 29' enclosed trailer once in a while, tows my little fishing boat once in a while to launch that as well. i only tow the trailer and pontoon around the driveway, as they are pretty heavy. the trailer is 2500# empty and the boat+trailer is probably 3500# or so.
Otherwise, i have a small garden cart thing that i tow around sometimes too but the box usually has tools in it instead for whatever project i am working on. easier to keep it all in there and drive around than to walk with all of it for a half hour. haha
steve