I went in a sand pit last weekend with an atv, a dirt bike and some friends. And decided to go in the sand with the truck.
Wasn't a big day since one of the guys rolled the DS 650 and broke two bones in his right wrist.
Anyway, in the video I tried to climb back the hill but there were more than 15 inches of loose sand, and not much place to get some speed.
Beside that, the truck handled fine (even with 55 psi in the tires) and climbeb fine on packed sand.
P.S. Blue smoke is caused by a possible faultly injector on cyl. #5.
And this was in an ATV trail in the woods