I was just looking for a ballpark figure. I like the Menard's Santa Fe flat cars but wish they were available in a choice of orange-red or gray. I was considering buying the gray flat car with the panel trucks and moving the cars to one of my orange-red flatcars. Strangely enough, it seems the F150 car that came with those is too big (1:43). I was hoping the panel trucks were 1:48. I also bought the ATSF box truck which is 1:48, so that's my other project. I need to get to my local hardware store to get proper length screws to do the attaching.