Bit more info RE ScotRail 158..
158 701-750 had First Class sections fitted. Some most from new but the earlier ones had it retrofitted.
The First Class seats had larger spacing and were finished in the same grey with blue/green RR style flecks as I think, the 150's that had been refurbished for Centro used.. If I recall right, the later built units had fake wood effect grey tables also (although they may have been fitted at the same time as the red cloth)
Around 1993/4 the first class seats were re-trimmed in the same red fabric used on the 159's then being fitted out at Rosyth Dockyard.
The info comes from RND Rosyth.. Forgot to ask my Uncle, who worked on them at Rosyth, until tonight.. He also retro fitted some units with the new seats at Haymarket and he said in Glasgow, however this could have been Cowlairs or Springburn.. "It was in that kip" so couldn't get him to narrow it down..(its amazing what a chat over a pint or 5 can bring up!).
Around this time 158 745-50 were transferred to what would become Cross Country to work the Edinburgh - Manchester Airport service (the rail-link having then just opened). When they lost the ScotRail interior I don't know.
There were 2 units (think 158 714/5) re-trimmed in second class around 1996/7 in a blue cloth with red/orange checks a-la RR style but to match the colours of the ScotRail "swoosh" then being used..
I have a pic of the fabric used somewhere (From a 150) and will post as soon as I find it..
All this comes from what I already knew, My Uncle, And "Railway Steve" of Scotrail (and my once local pub)..
Hope it helps!
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As for what units Had 1st from new.. I found a pic of 158 434 in all standard (no yellow stripe) in nov 1991.. Driver training at York!
Does anyone have a pic of the ScotRail logo on 158701/2 when new? I remember it was in the BR typeface as opposed to the RR one.. It would have carried it for months if that..