I spent hours looking at the puzzle picture posted by "mbx75" and never did come to a satisfactory answer. I now see what he has done and because the picture is really too dark, it was not clear what we were supposed to be looking at, but I now know what "mbx75" has done and re-posted his picture with some explanation on it!
The large grey area is in fact the surface the model is resting on, only the little black area is the model or part of the model which in this case turned out to be just the roof component of a Mercedes-Benz car!
Now we know this, all his Puzzle pictures can be solved in mere seconds
Ghosty.