You could buy them new from Aussie dealers during the Series 6-7 phase - that is 1992-1998.
After 1998 Aussie dealers stopped selling them.
In 1999 came the Series 8 but that was not sold in Australia any longer (although they had a Bathurst model - go figure!)
Production of RX7s totally stopped in 2002 with ultra sought-after, limited edition (1500 individually numbered only) Spirit-R model.