Hello Folks I'm no expert by any means on freight cars, I'm just reaching out to the group to correct me if I'm wrong about this. Rapido has always made a excellent an accurate model of various proto types. However the Rapido features list of X-3 tank cars reads a 54" dome as one of details on the model. I have just went through and checked ALL the UTLX numbers against the X-3 Table-4 in Stephen Hile's UTLX tank car book. I read from the table the following data. #17550............ is an 8000 gallon car not a 10,000 gallon car #30443.............is a 60" dome with a screw manway cover not a 54" dome with bolted 2 safety valves All of the rest of the car numbers with any UTLX reporting marks are also 60" domes Also Rapido doesn't say if the model features 1 or both side dome platforms The numbers chosen have both variations? I hope I'm wrong about this, but I just want to hear some of your opinions about this before I order any of these cars Any help is appreciated.