Atlas O Gunderson Multi-Max Auto Carrier

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.


  • Designed in the USA
  • All new flat car and superstructure Tooling
  • True 1/4” scale details and dimensions
  • Operating end doors
  • Removable interior deck (additional deck available separately to convert from Bi-Level to Tri-Level)
  • Newly tooled trucks
  • Separately-applied wire grab irons
  • Highly detailed side screens to maximize prototypical appearance in scale
  • Accurate painting and lettering
  • Minimum diameter curve: 42” (3-Rail)
  • Minimum radius curve: 36” (2-Rail)
  • Four road numbers are available per road name

Check availability of this product on the Atlas Online Store

3-Rail Item# Road Name 2-Rail Item#
June 2021

3-Rail MSRP: $139.95 2-Rail MSRP: $144.95

New Model!
3007420 BNSF (Orange) 3008420
3007421 CP-SOO (White/Red) 3008421
3007422 Kansas City Southern (Yellow/Red) 3008422
3007423 Norfolk Southern (TOCX) (Yellow/Black) 3008423
3007424 Union Pacific (TTGX) (Yellow/Red/White/Blue) 3008424