The die cast cars are good for smaller trains If you plan on running long train put the die cast cars on the shelf I found the best cars to put in long trains are the older Atlas cars I have run the H21 hoppers and the 55 ton hoppers in trains over 100 cars We have alot of grades so this was with multiple engines. The longest single engine trains I pulled were with an MTH Triplex 60 cars and an MTH Yellowstone 80 ore cars. I found that Atlas engines have that problem with heating up after awhile and start slowing to a crawl
This is a Y6B and two Alleghenies pulling 94 hoppers