You can uncouple cars automatically with a remote-control or uncoupling track section

Here is a MTH 30-76281 O Gauge Coors Light Flat Car w/ Billboard

pilot truck with solid wheels

The Trainz SKU for this item is P11661459

Road Number: 902

MTH 30-1443-1 NYC 4-6-4 Dreyfuss Steam Locomotive & Tender w/PS2 #5448 VariantsUnitPrice_number_430.15 You can uncouple cars automaticallyHere is a MTH 30 1443 1 New York Central 4 6 4 Dreyfuss Steam Engine and Tender with Proto Sound 2. 0. Features include Diecast Metal Chassis, Authentic Paint Scheme, Metal Wheels and Axles, Precision Flywheel Equipped Motor, Metal Handrails and Decorative Bell, Decorative Metal Whistle, Diecast Boiler and Tender Body, Constant Voltage Headlight, Diecast Truck Sides, Remote Controlled Proto Couplers, Locomotive Speed Control, Engineer and Fireman