Article in todays Sunday Times states that Mercedes are putting their truck test drivers into fat suits so as to able to develop their trucks to suit the larger driver. Surely if you can’t fit in the seat isn’t that a hint that it is time for a diet! What next a stannah stair lift to get you into the wagon
Aiming for the US market perhaps. 
Mazzer reading the Sunday Times,top dogs on Trucknet indeed,think MB’s efforts are targeted at Germans who are generally fat.