Some Chicago stuff:
And a NYC car converted to scale wheels and couplers:
I also have a couple of Lo-Vs (one yellow to be converted as the above R-17 and one green) and a set of R-142A with the two-car add-on set.
I recently fished a single red R-17 out of the 'bay for a ridiculously low price as it was listed as a "red passenger car".
Edit: I forgot to add that I have the following:
6 CTA 4-car sets
5 CTA 2-car sets
1 NYC 4-car set
1 NYC 2-car set
several miscellaneous single cars