http://www.trademe.co.nz/Trade-Me-Motor ... 757854.htm
My thoughts on this is they are actually selling the personalised number plate rather than the car.
Especially when I looked at the history
http://www.carjam.co.nz/car/?plate=16v+bx
1988 BX 16V for sale in NZ
1988 BX 16V for sale in NZ
1991 BX19 TZS 04/01/91 (Deceased)
1990 BX19 TRS 27/10/89 (Reborn)
1992 BX19 TXD (Ex UK - K 744 SDF) 15/06/92
1990 BX19 TZS Auto 06/11/1989
1992 BX TZD Turbo Estate (Ex UK) 1/07/91
1990 BX19 TRS 27/10/89 (Reborn)
1992 BX19 TXD (Ex UK - K 744 SDF) 15/06/92
1990 BX19 TZS Auto 06/11/1989
1992 BX TZD Turbo Estate (Ex UK) 1/07/91