Bryan,
Rich Foster was correct, the 5-car set was spread over multiple shipments. This can happen for a variety of reasons, including parts procurement, production capacity, container capacity and so on. The balance of the 5-car production run will exit production late this month and is due to arrive at our Maryland distribution facility in September. In the meantime, all the "add-on" cars for the Norfolk Southern set are due to arrive in Maryland the week of August 7th!
Andy Edleman
Vice President - Marketing
M.T.H. Electric Trains