I have acquired a NYE ESE passenger set and a 2 car add on. MTH #'s MT-6504 and MT-6509
Both boxes state they are premier 70' scale but the MT-6504 box states car length is 15" while the MT-6509 states 18". When taken out of the box and the cars are set side by side they are in fact the same length which is about 17 1/2" (body length). I have attached pics of box descriptions.
Any thoughts as to why this is?