1978 Australian Touring Car Championship

The 1978 Australian Touring Car Championship was a CAMS sanctioned Australian motor racing title open to Group C Touring Cars. The title, which was the 19th Australian Touring Car Championship, was won by Peter Brock. It was his second Australian Touring Car Championship victory. In his first ATCC since 1973, five time series champion Ian Geoghegan won his ninth and last ATCC race when he drove his Bob Jane owned Holden Torana to a surprise win in Round 4 at Sandown. In what would be his last ATCC season, Geoghegan finished 13th in the championship.

1978 Australian Touring Car Championship

The 1978 Australian Touring Car Championship was a CAMS sanctioned Australian motor racing title open to Group C Touring Cars. The title, which was the 19th Australian Touring Car Championship, was won by Peter Brock. It was his second Australian Touring Car Championship victory. In his first ATCC since 1973, five time series champion Ian Geoghegan won his ninth and last ATCC race when he drove his Bob Jane owned Holden Torana to a surprise win in Round 4 at Sandown. In what would be his last ATCC season, Geoghegan finished 13th in the championship.