The locomotives are distinguished by their feedwater heaters

Here is an MTH 20-66130 Alaska 2-Car 70 Foot ABS Sleeper/Diner Passenger Set (Smooth) V2

Model Number: 00672

The Trainz SKU for this item is P11505203

San Juan Car Co On3 D&RGW 6000 Series Flatcar w/o Model "A" Truck #6034 ProductID_12126278 The locomotives are distinguished byThis car features plastic construction, plastic truck, plastic wheels, and knuckle couplers. Please see my pictures for additional features. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: San Juan Car Co Road Name: Denver & Rio Grande Western (DRGW) Scale Era: Other Scales Model Type: Other The Trainz SKU for this item is P11966573. Trainz Product Id: 11966573