Holytown Pt 2 - kind of passenger??
Holytown is, in fact, on the line between Edinburgh and Glasgow but only sees the stopper services along the route. Despite this, it gets ScotRail's modern EMU traction, Class 385s. These Hitachi-built trains built in 2018 can run at 160km/h and have 3 or 4 coaches. You'll also often see two 3-car sets coupled together, putting the front gangway to use.
On the other hand, Veramis Rail uses Class 321s for fast parcel work. These trains were built by BREL (British Rail Engineering Limited) in 1988. They're capable of 16*1* km/h (lol) and used to be passenger trains, but Veramis and Eversholt saw the potential for them to be converted into fast parcel trains, so that's what ended up happening.