Visually very similar to their older cousins

usually in a trailing truck

This is a Con-Cor 223-15626 HO Scale 1880s Wood Open-Platform Coach - Ready to Run Durango & Silverton #317 (Pullman Green) Passenger service in the 1800s looked very different from what would come a century later

Trainz Product Id: 12099201

This is an Athearn G69409 HO Southern Pacific MP15AC Diesel Locomotive #2755 (Faded)

MTH 20-5622-3 Amtrak AEM-7 Non-Powered Electric Locomotive #909 ProductID_12138416 Visually very similar to theirThis is an MTH 20 5622 3 Amtrak AEM 7 Electric Enginemotive (Non Powered). Features include: Diecast Truck Sides, Pilots and Fuel Tank, Colorful Paint Scheme, Metal Chassis, Metal Body Side Grilles, Intricately Detailed ABS Body, Operating Pantographs, (2) Cab Figures, Metal Wheels and Axles, (2) Operating Metal Couplers, Unit Measures: 13 1 2 x 2 3 8 x 3 5 8, Operates On O 42 Curves. Condition: Factory New (C 9) Operational Status: Functional