View: https://youtu.be/-KuAPuzKJYo?feature=shared
We get these going past our house. For modern trains, they're quite interesting: a class 67 locomotive*, five Mk5 coaches, and an ex-ECML DVT on the other end with a chime horn.
*same engine as a class 66, capable of 125mph(!) but with an unfortunate history. They were ordered for fast postal trains, but Royal Mail switched to road and air transport instead. The axle loading is quite high, which limits their routes, and they're not geared for hauling freight. Many have been in storage for years, and one has been scrapped.
I once saw a double headed pair of 67's on a Freightliner working struggling through Willesden Junction one evening. I'm sure the driver was doing his best.