Apologies if someone has already posted this but I just discovered a review of the Rothmans NZ national formula 1.5 litre championship race at Levin in 1968. This was in the Autosport Dec 13 1968 magazine and it notes that the 1.5 McRae-Ford t/c was the first aerofoil to be seen in NZ... so I thought it may be of some interest.
(Had to split the scan into 2 images to get uploaded.)

Name: mcrae1.jpg Views: 947 Size: 181.1 KB
Name: Mcrae 2.jpg Views: 822 Size: 194.9 KB