class 37s are probably my favourite diesel locos and i like the noise they make especially on freezing mornings in the scottish highlands. I’m a big fan of this particular livery and wish they applied it to all trains in scotland and not just the sleepets (with the exception of the spt area with based carmine and cream)
I also have a fondness for sleeper trains in general because they are peak comfy and i hear one go by my house every night.