Small test on a micro scale, with a steam train and its tender in 3 studs wide. Considering that the 3 wide is to the 2 wide what the 8 is to the 6, it offers more details and of realism if the wheel base and the width of the train are compared.
This small MOC is in Railbricks number#2 pages 53-57
Deserves more likes indeed! 3wide is a rear stuff and the proportion, detail and everything is just stunning. (I left my dark age just a year ago, so thats why I didnt find this model earlier).
*edit: Thank you for great inspiration you gave me.*