[Tenrocca]

From my little bit of research, the first model to comply with ADR 79/00 (which applies to all new models from 2003 and ALL new cars sold from 2004) was the VY series II which was launched in August 2003. This is the important thing I think - an engine that can be proven to meet this ADR - as this is the one that takes us up to the end of 2007 with the 3 yr grace period.

So does that mean the only difference between the series 1 VY and series 2 VY was the tune to meet the new ADR? Holden specs state power went from 220 to 245 kW with the S2.