In 2013, Greenbrier Companies introduced their new design of 89’ auto rack, the Multi-Max™. The new design allows for changing configurations from a Bi-Level to a Tri-Level (and back) without adding or removing decks. The racks are fully compatible with existing 89’ auto racks. To this date, most of the racks have been built on Greenbrier Companies’ own specially designed 89’ flat cars. These cars are commonly seen in cuts of other similar autorack cars or a solid unit train of autorack cars. Currently, almost 10,000 cars (with racks) are running on North American rails.