It has a plastic body

Here is a Marklin 37899 HO DB Christmas Steam Locomotive & Tender w/Display #502412

This is a Lionel 6-82017 O Plug-N-Play Lionel Art Operating Billboard

Model Number: 14300030

Lionel 6-29110 Baltimore & Ohio 4-Car 18" Aluminum Passenger Set ProductID_12158136 It has a plastic bodyHere is a Lionel 29110 Baltimore & Ohio 4 Car 18" Aluminum Passenger Set. Features metal wheels and operating couplers. Each measures 18 inches in length. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Lionel Model Number: 6 29110 Road Name: Baltimore & Ohio (B&O) MSRP: $529. 99 Scale Era: O Modern Model Type: Passenger Cars (New) The Trainz SKU for this item is P11398898. Trainz Product Id: 11398898