Sydney's "Tangara" train in Lego, kind of
Here's an attempt at designing Sydney's "Tangara" train as a Lego model, using some wing-ding Lego modelling software for the Mac. The colours are based on the current (2008) trend for all of the trains to be represented in yellow.
In hindsight, I could probably have made it eight studs wide, rather than six, to give a bit more detail. I tried to stick with Lego's standard of six studs for a train, though.