I agree with the concept of CNG being an ideal transitional fuel for Australia.

I recently checked on the production/availability of CNG vehicles here. Recently Ford (or Holden, I cannot remember) anounced that they were going to make a production run of 1000 CNG powered vehicles here for sale into the taxi industry.

Toyota are producing a standard model CNG vehicle. However at the moment this vehicle is only being sold in Japan and USA.

It seems that India, Pakistan, Argentina and Brazil are leading the way in this area :

http://envirofuel.com.au/2007/04/21/cnglpg-vehicles-and-conversions-set-...