About the same time the Vision Hudson was released they offered 6 18" green heavyweights. These are same cars, different names and numbers as a set offered around 2007 but without the SS diner that came with the earlier set.
Like I said earlier there are dozens of sets that would work with your engine. Many have better detail and features than Lionel cars at a lower price. Later MTH and K-Line in particular.
Pete
