Australian new vehicle sales in September rose 18.3% year on year to 110,702 units, a record for the month.
FCAI chief executive Tony Weber said 900,000 new sales had been achieved so far this year and four of the past five months had been record months.
Sales of SUVs and light commercial vehicles made up 79.4% of sales with passenger vehicles accounting for 16.8%.
Battery electric vehicles accounted for 8% while electrified vehicles overall (battery electric, hybrid and plug-in hybrid) recorded for 18.3%.
Toyota was the top selling brand with 20,912 sales. Mazda followed with 8,031 then Ford (8,015), Kia (7,303) and Hyundai (6,217).
Toyota's Hi-Lux truck was the top selling vehicle recording 5,776 sales. It was followed by Ford Ranger (5,429), Tesla Model Y (3,811), Isuzu Ute D-Max (2,885) and Toyota RAV4 (2,798).