I sat in one of those. They're quite comfortable, at least when you're sitting still. It's like having a La-z-boy as your driver's seat. They're definitely not designed with skirt-wearing women in mind, though.
You could be king of the grocery store parking lot in one of those.
Those will pull anything you can hook up to the back of them. Some serious torque output from that Duromax. International has something along those lines as well.
http://www.internationaldelivers.com/site_layout/XTFamily/cxt.asp
These are for folks who don't care about the cost of fuel.
Terry