Mixing Crescent Passenger Cars

No, they aren't exactly the same color, at least not the ones I bought: somewhat the opposite, bought the four car 2012 set and one from earlier for my five car set.  

The difference is minor enough it will not show well in photos so I won't even try.  It isn't serious enough to matter to me - very subtle, clearly within whatever real-world differences there were between running stock of railroads - what had been painted last week, versus last year, etc.