Roof is wrong, BFF used the X-panel, model has Pullman-Standard roof.
Ends are wrong. There's a huge gap between ribs about halfway up. Look closely at the photo below, and there is a little bit wider spacing there, due to joining two sheets together, but it's really not that noticeably wider than the regular spacing. On the model it's almost like a whole rib got left out.
The side sill profile is crude and doesn't get the full effect of the notched Berwick side. Ends up looking more like a crude FMC or Pacific Car & Foundry profile.
Door's ok, but with the plate it's specific to something from a road running cars for the National Railway Utilization Company (NSL, MNJ, PT, PICK, etc) - not necessarily a bad thing to have this option though.
Compare the details on the model to the end and side sill notch on this car:
http://freight.railfan.ca/cn/cn418026.jpgYou can also tell from the spacing of the ends of the roof ribs that it's an X-panel roof (due to the nice wide panels, and the fact that there's half as many roof ribs as on the model).
