C - SOLID STRUCTURE - After being stripped down to its skeleton, the new steel framework of the walls and interior took shape. The space under the stairs now functions as a storage area, while also containing the car's air conditioning and mechanical systems.
 
D - SOME ASSEMBLY REQUIRED - The walls, floor, and interior structure of the car were replaced. The lounge area was entirely rebuilt, including the addition of a washroom, an amenity the car did not previously have - Date? Photographer? - CP.