How I can tell the difference between the BREL and Alstom networker subclass

I have wanted to do this video since 2021 which covers every class 465 subclass and their differences

[@The_Georgi0]

That's incredible, I've literally just travelled down exactly the same route as you - I just discovererd the old brush traction motor sound a few days ago before finding this video.
Also, the video is very well made and very informative. Congratulations

[@LeeSmith-cf1vo]

You didn't mention the windows!

[@olivers_level_crossing_uk]

Dont know