(15 Nov 2016, 8:17 pm)S813 FVK wrote V-reg ran from September 1999 until the end of February 2000 (replaced by W from 1st March)
For the purposes of this, I would go off the date given by both the official GNE fleet list and the fleet list on here which shows them as being new in 2000.
6008-6042 were all registered new on 01 February 2000.