Its either LTA changed its mind, by "upgrading" the MAN NL323F
(BSEP Batch 3) buses to Alexander Dennis Enviro500 (BSEP Batch 1)*
or SMRT bought some units from LTA..
* Please do not try to rename the SgWiki page Alexander
Dennis Enviro500 (BSEP) to Alexander Dennis Enviro500 (BSEP Batch
1), unless LTA purchased another batch of the Enviro500
buses.
I actually pondered over whether the news saying that SMRT is
buying only 103 Enviro500s is a reliable source, or probably the
number of BSEP buses in this order has been increased from 218 to
an unknown number...