I'm a fan of the 40" boxcar, to me one of the finest is Lionel's model of the PS-1, designed by Todd Wagner & crew. Over the years there have been several lists posted. I have attached my list, please feel free to add comments or corrections, and more importantly omissions. Please note this list is solely 40 foot PS-1's, no 50 footers, round roofs, standard O, RBL's, nor the old Weaver PS-1 sold as 3-XXXXX series.
Steve