aren't all trains electric?
When GA and I were in Victoria, we travelled from Melbourne to Geelong on a diesel train.
Freight trains here run on diesel as well.
Being the picture thread and all, here is a picture of the newer buses in Perth.
![](http://www.transperth.wa.gov.au/Portals/0/images/BusesTrains/CircleRoute.jpg)
Perth trains look like this:
![](http://www.visitmandurah.com/assets/public/Image/website%20-%20rail.JPG)
And these are the Perth CATs (Central Area Transit). It is free to travel on these buses. I like the cat on the side.
![Smiley :)](http://www.intensitysquared.com/Smileys/default/smiley.gif)
![](http://www.transperth.wa.gov.au/Portals/0/images/BusesTrains/Perth%20CAT.jpg)