Really am struggling to believe a car can accept 2 tons in its boot space!
Many years ago I helped a friend grit-blast a 50' steel boat hull (a WW2 flying boat fuel tender, if you're interested!) and we moved several tons of grit there in his old Sierra 1.6 estate ... think we did it in two trips though No SLS ... the rear suspension was on the bump stops and the front was pointing up in the air