I was considering the ToughBook as a mounted item in truck. We're planning a 30k mile expedition over a variety of terrain but not into warzones or hostile territory. The laptop is for inside truck or indoor use only but will see fair amount of shock and some degree of dust. Panasonic makes two lines of toughbook - a fully ruggedized version (ToughBook 18 & 29) and a "semi-ruggedized" line (ToughBook 51, W4, Y4, etc.). Does anyone have any experience with either of these products? I'm kinda leaning towards the semi-rugged versions to save on cost.