The cars have underbodies and trucks specific to their designs

Chicago & Alton Alton Limited Heavyweight passenger car 4-pack

This is a Athearn 6968 N Burlington Northern Santa Fe ACF 4600 3-Bay CF Hopper #423330

Model Number: 5532

LEGACY RailSounds sound system featuring - CrewTalk dialog and TowerCom announcements

Lionel 1933200 O Southern Pacific Legacy Alco PA AA-Set Diesel Loco #6034/#6039 LastUpdated_20260807131441 The cars have underbodies andThis is a Lionel 1933200 O Scale Southern Pacific Legacy Alco PA AA Set Diesel Locomotive #6034, #6039 LCS with Bluetooth. Both units powered! LEGACY Control System equipped able to run in LEGACY Control mode, in TrainMaster Command Control mode, or in Conventional mode with a standard transformer Bluetooth Control Operate with Universal Remote or LionChief App LEGACY and Bluetooth control in both locomotives Fan driven smoke in both locomotives Track