Hi Steve,the equivalent to the HT Monaro assembled in SA was identical to the Australian car but did use local glass,trim and lights and was badged Monaro GTS .

The later HG version featured the four headlight grill and unique wrap around front park/indicator lamp assembly ( similar to an XW/XY ) and these were badged Chevrolet SS.All the SA assembled cars had vinyl roofs so I suspect the two yellow GTS,s are original SA built cars.