Thanks for these responses. From the article SargeNpton posted, it's clear that manufacture, not just office functions are being moved to Southam - thanks for helping set the record straight. Southam isn't railway connected, nor (from what I read) is it intended to be - not saying it's never going to be connected, just that there are no plans / expectations currently. So it still leaves a few questions unanswered - particularly about 230001 & 230002. Where do Vivarail intend to store them, and the many yet to be converted D78 vehicles, and any other rolling stock Vivarail owns? Will it all be moving to Southam (by road)? Do they have space for it at Southam? Is Southam the best place for them, particularly if they're to be used as testbeds for new equipment? Would it not make sense to manufacture components at Southam, and fit them at Barry for testing. Or perhaps Vivarail aren't removing their rolling stock from Long Marston, although the article I read (sorry, I can't find it now) gave the impression that Vivarail were quitting the Long Marston base, and why: I think it was because the owners (St Modwen?) are intending to re-purpose the Long Marston site.
Is there space at Barry to store Vivarail's rolling stock? Looking at Google maps (
https://www.google.co.uk/maps/place...df935939!8m2!3d51.392322!4d-3.273716?hl=en-GB) there doesn't seem to be much room at Cambrian Transport in Barry. Although the former WRD at Barry could possibly be repurposed (
https://www.google.co.uk/maps/searc...3964721,-3.284123,239m/data=!3m1!1e3?hl=en-GB) - but I've seen no suggestion of this.
It would also be good to have confirmation about the possible export of 230001 /2 - which one's involved, and when it's intended to be exported.
I've read that 230001 & 230002 are not currently visible from any public vantage point at Long Marston, and I'd love to see them - they're the only items of coaching stock built / converted before 2019 I've not yet seen. So it would be great to understand what plans Vivarail have for the rolling stock they own - including 230001 & 230002. Many thanks