nice shot djmarrs, nice to see more angle on the European locomotive.
In general, British locomotives and rolling stock differ from many or most European equivalents as we have a tighter loading gauge to cater for our Victorian tunnels etc. It makes our railway system look somewhat unique and also means that standard locos, including the US/Canadian built class 66s, have to be redesigned to run on British rails. Other trains, passenger EMUs and DMUs for example, are normally specially designed for the British system.
One other point of interest is that in this context, "British" means only the mainland of Great Britain. Ireland, including the north, which is part of The United Kingdom, uses a 5ft 3 inch/1600mm broad gauge so the two systems are totally incompatible.