Complex sentence: Points were awarded on a 12,7,5,3,2,1 basis to the first six placegetters in each round however only resident Australians drivers were eligible to score championship points.
Split into simpler sentences: Points were awarded on a 12,7,5,3,2,1 basis to the first six placegetters in each round. However, only resident Australians drivers were eligible to score championship points.