That's only a guess as I haven't got it over a weighbridge when fully loaded yet, but it includes water, gas bottles, batteries, two spares and lots of other stuff.
We haven't even gotten into Gross Combined Mass (GCM) of vehicle and trailer yet, let alone axle loads.
I was a bit ignorant about all this stuff, because the Defender has such a high payload (almost twice that of a 200), that I hadn't needed to think much about it. Now I'm learning a lot.
This is a good explanation of payload, I thought.
4x4 Vehicle Loading & GVM explained

