Nice, circa 1960s to 1980s era or so, lot of 6, HO scale, assorted makers, stock cars that are missing a few parts and trim pieces and a great lot.  Nice lot, used cars, most to all are missing something like a lower step or two, the Lionel yellow one has lots of wear, a few sets of wheels missing, missing some couplers, wear, very usable lot. Most could probably use some cleaning.  Zoom in for details.