My Friend Les G Raises some very valid points !!
The Class 66 from a Dvr perspective are Noisy but the "New" Seats are a big improvement even if that does nothing for the internal noise problem. I could enlarge upon that issue but back to the original thing re the British locos.
As nice and characterful as they are compared to the General Motors Loco`s they are not in the same league !!
Kris