The Class 170 turbostar a nice train how about those or the sprinter class trains such as the 150/156/158 as none of these are currently on consoles and would make a great addition or a pacer train
The 17x would be very useful on a lot of UK routes as it seems to go on most of them, same with 15x for older scenarios on main routes or branches on newer ones
Can I suggest editing your post to put the specific train names in the title, help maintain some degree of order in the forum listings when people are browsing
This is the only side of britain that they seem reluctant to add. (we have most British trains but a surprising lack of sprinters even though they are everywhere)