NYC Fan,
For some reason I do not fully comprehend, MTH downgraded their 13.5" long cars to a Rugged Rails product line without changing the cars. These cars are larger than Lionel's 027, and they are the same physically as their Rail King predecessors. I know this to be true because my passenger car roster is 99.9% predecessor Rail King and Rugged Rails.
Actually, the 13.5" long MTH Rail King / Rugged Rails cars have a scale width and body height, but they are shorter than scale. SO in Pennsy parlance, the Rail King / Rugged Rails 13.5" long heavyweight cars are actually comparable to P54 commuter cars, but they represent P70 heavyweight cars.
I hope this helps, and by the way, the Rugged Rails label connotes a lower price than just Rail King which is beneficial to our wallets. And another by the way, Rugged Rails freight cars and Bantam locomotives are 027 in size!
For overall appearance, a string of 13.5" Rail King / Rugged Rails cars looks much better than a string of longer cars because:
- Little to no overhang on curves;
- Longer trains;
- More cars align with station platforms.