Wow. Would like to see that even more on the conversion sets.
About the C cars, the new ones are very easy to pick out, high car numbers and of corse they look newer. If you want to talk about conversion cars, every B car with a 2 at the end is going to be a C car. Now, the only problem is the new sets but that could also be solved easily too. For the 5 car sets, it goes 12, 23, 34, 45, 56, 67, 78, 89. For the 6 car sets, 20, 31, 42, 53, 64, 75, 86, 97. OK, yes. It's still a lot of remembering but there is no reason why the C cars can't be in the middle. And we will most likely see a "no coupler adapter" car leading at a point where Corona no longer cares about the order. If they care about keeping "no coupler adapter" cars in the middle, they might as well keep them in numerical order.