This is Bachmann 62938 HO PCC Trolley Boston

Features: diecast metal sprung trucks and operating couplers

This is a Wiking 26456 HO Scale Preuss Double Tractor Trailer Plastic Model Car

The smaller

Trainz Product Id: 12169893

Walthers 920-100303 HO Scale COMX Type 21 ACF 8,000-Gallon Tank Car #661 ProductID_11451892 This is Bachmann 62938 HOThis is a WalthersProto 920 100303 HO Scale Type 21 ACF 8,000 Gallon Tank Car Ready to Run Commerce Petroleum Co COMX #661 (black) * Limited Edition One Time Run of These Roadnumbers! * Used to Haul a Variety of Oils & Other Liquids * Factory Installed Grab Irons * Detailed Underbody with K Brake Equipment * 1000s of Cars With this Common Design Served North America for 4 Decades * Ultra Smooth Rolling Metal Axles & 33 Wheelsets * Proto MAX(TM) Metal