https://www.youtube.com/watch?v=AJOMi4J8PoI
http://www.spt.co.uk/2019/05/first-new-subway-trains-arrive
https://www.globalrailnews.com/2018/09/20/new-glasgow-subway-train-revealed/
upgrades
https://www.youtube.com/watch?v=LcppFgg52eE
http://www.spt.co.uk/subway/maps-stations ,
https://www.youtube.com/user/joinupmyjourney/videos
https://www.youtube.com/watch?v=V3XS65Tjo6Q
history
https://www.youtube.com/watch?v=vGD-sSOjdc8
https://en.wikipedia.org/wiki/Glasgow_Subway_rolling_stock