If you are boarding the CZ at the end of the line and are traveling via coach to the other end of the line, the crew will probably assign you to the ""12" car, which is adjacent to the superliner lounge and one car removed from the diner. But, if you are mobility impaired, you might ask the ticket agent at the time of purchase to assign you a coach seat in the lower level seating area reserved for mobility impaired passengers. All toilets in superliner coaches are on this lower level, and the attendant will be quite willing to get your food orders for you from the diner or superliner lounge cafe and bring them to your coach seat, so you won't have to be climbing up and down those narrow, twisting staircases and then walking between cars.