Has any one seen the new laws concerning engine size and the weight of your car, check the link you will be surprised whats law now.
http://www.dotars.gov.au/transport/safety/road/bulletin/pdf/NCOP3_Section_LA_Engines_3Feb2006.pdf
http://www.dotars.gov.au/transport/safety/road/bulletin/pdf/NCOP3_Section_LA_Engines_3Feb2006.pdf