Rod, before you order, see one up front in person for yourself. You maybe satisfied with them. I'm not on here to trash Lionel. I actually have bought over $600-700 of Lionel cars in the last few months. I ordered $300 worth of Lionel cars yesterday. I think their PS-1 boxcars are some of the best in the market. I love many of there products, but for me personally, things seem to be sliding with the top end products. From my view point, all the manufactures are cutting corners now. No matter how much fidelity and accuracy we would like, the companies have to make a profit. I hope this clears things up for you. For the record I did not see the SD40-2 run and have no idea what's happening under the shell.
Billy C