It has controlled high efficiency propulsion

that’s right

Here is a Lionel 6-36688 Maritime Caboose

Here is an Athearn 24208 N Scale Pam Am 50' FMC Boxcar MEC #32132

Rapido Trains 509132 N Seaboard Osgood-Bradley Lightweight Coach #830 ProductID_11399755 It has controlled high efficiencyThis is a Rapido Trains 509132 N Scale Seaboard Osgood Bradley Lightweight Coach #830. It Features: Full underbody detail, End diaphragms with etched metal end gates, 41 E trucks with metal wheelsets, Full interior detail, Partial or non skirted versions, Easy Peasy battery operated interior lighting, Metal side grab irons and Accurate paint and lettering. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9)