2003 Australian Sports Sedan Championship

The 2003 Australian Sports Sedan Championship was an Australian motor racing competition open to Group 3D Sports Sedans. It was recognised by the Confederation of Australian Motor Sport as a National Championship and was the 19th Australian Sports Sedan Championship,

The championship was won by Kerry Baily driving a Nissan 300ZX Chevrolet.

Calendar
The championship was contested over a five-round series.

Note: Race 2 of Round 2 at Phillip Island was cancelled due to rain

Points system
Championship points were awarded on a 20-17-15-14-13-12-11-10-9-8 basis for 1st through to 10th place in each race and an additional point was awarded to the driver setting the fastest time in Qualifying at each round.

Cars complying with New Zealand Tranzam regulations were eligible to compete in championship races but were not eligible to score championship points.

Results
Note: Cars complying with New Zealand Tranzam regulations were eligible to compete in championship races but were not eligible to score championship points.