Here is an Atlas 49724 A B23-7 Southern Pacific Diesel Locomotive #5100

70' ABS RPO passenger car (smooth)

but the included laser-cut deck and brake gear will work equally well on both brands of flatcar

Trainz Product Id: 12310347

Model Number: 1371

MTH 20-91432 O Gauge Chessie Bay Window Caboose ProductID_12475081 Here is an Atlas 49724Here is an MTH 20 91432 O Gauge Chessie Bay Window Caboose. Features Intricately Detailed Durable ABS Body Metal Wheels and Axles Caboose Interiors With Overhead Lighting Diecast 4 Wheel Trucks Operating Diecast Metal Couplers Colorful, Attractive Paint Schemes Decorative Brake Wheels Separate Metal Handrails Fast Angle Wheel Sets Needle Point Axles Unit Measures: 10 3 4 x 2 3 4 x 4 Operates On O 31 Curves Condition: Factory New (C 9) Operational