 The exterior would feature a stainless steel body rather than the aluminum of earlier designs.Inside, seats would be taller and more ergonomically designed, carpeting would be replaced with a resilient floor covering, the grab bars along the ceiling would contain spring-loaded handles, and the cars would contain security cameras, automated announcements, as well as LCD displays to provide train information.There is also an option to install longitudinal seating instead of the traditional transverse seating found in all previous stock.