I believe they also changed the HST physics a few weeks after GWE initially released in TSW2, after many players reported it was somehow more sluggish than it was in TSW2020.
Yes, you're right; I remember that now. In fact I recall being mystified as to why westbound I wasn't hitting 125 by Iver any more.
I'd love to see some AI tube trains at Ealing Broadway and coming out of Paddington. Its a major visual feature in this area and notably absent in game. Wouldn't need to be drivable or have a timetable, maybe not even have interiors or passengers, just running along at set times like the cars do
For this somebody would need to make the hammersmith line. So gwe can have its a.i traffic. Funny thing even if its just visible a short time.
I have seen tube trains at Didcot before now . But yeah it would be great to see them, perhaps the only way we would see them is as a static object but that would be better than nowt.