Seems odd to create two franchises running alongside one another then let them to the same operator (national express) who in this case used a very similar livery...
was it always assumed wessex would be merged with first great western and there would be one operator for wales?
Or was it a permanent fixture at the time do we know?
a bit like the southern southeastern situation now
The first round of franchises included:
GW (GWH/First), Thames (Go-Ahead), Wales & West (Prism/NX) and Cardiff Railways (Prism/NX).
Mid-Wales was run by Central (NX) and North Wales by NWT (First).
This was pretty much as BR had left it.
The SRA decided to reconfigure them all in 2003, because they wanted (a) bigger franchises, (b) one operator into Paddington and (c) one franchise for Wales.
So "Greater Western" included old GW, Thames and the Wessex part of Wales & West and was won by First.
"Wales & Borders" included Cardiff Railways and the Welsh bits of Wales & West, Central and North Western (and quite a lot of lines into England as well), and was won by Arriva.
Wales & Borders was in fact created by renaming Cardiff Railways and then folding in the bits of the other franchises into it.
Wales & West and Cardiff Railways were originally run by Prism before they sold out to NX in 2000.
North Wales had three operators within three months in 2003 - Wales & Borders was formed under NX and took over services from First in September, only to hand over to Arriva in December.