They also have rectangular buffers

Here is an USA Trains 310202 G Pennsylvania Streamline Baggage Car - Metal Wheels

21st Century Track System™ nickel silver rail with brown ties

This kit features injection molded

The Trainz SKU for this item is P11461285

Lionel 6-81142 O VISIONLINE UPFE Steel Ice Reefer w/FreightSounds (Pack of 3) DwDetails-2.25-0.95-13.15-8.15-4.30-2 They also have rectangular buffersThis is a Lionel 6 81142 O UPFE VISIONLINE Steel Ice Reefer w FreightSounds (Pack of 3) . Features includes: ie cast metal sprung trucks and operating couplers, hidden uncoupling tabs, separately applied metal underframe details, opening roof hatches with props, opening hinged style doors, one VISION reefer comes equipped with Baby FatBoy speakers, FreightSounds equipped reefer creates braking, scraping, and bumping sounds as the locomotive changes