I had no plans on putting cars inside, so it's not an issue.
I will only have an issue if it is not properly weighted. The other brands of scale auto racks are grossly underweighted and prone to derailing in long consists.
IMO Atlas O Master line rolling stock is the standard in quality, detail, accuracy and operation. I am confident these will be the finest mass produced scale auto racks.
I ordered 3 of these and hope to see more runs of these in the future. I would love to add a few CN multi max auto racks to my collection 😬.