Ed.
I was taking another look at that photo you posted of Rob's Penguin in service and realized the chap on the stretcher was being loaded into the vehicle via what appears to be the right front window.
Rob's photos clearly show a rear entrance, as well as one on each side, so now I am curious as to how the interior of these ambulance Penguins were set up. Was it just for two stretcher casualties one per sponson with crew access in the middle, or could a third stretcher be loaded via the back, over top of the engine area behind the driver?
The only other thing I can think of is the racoons wouldn't let the MO load the poor chap in the back door.
David