Home » News & Articles » Sydney Airport car park profits soar to record highs on back of fat margins Sydney Airport car park profits soar to record highs on back of fat margins by Steve Baxter March 6, 2017 SYD Parking Profits Soar – AFR Sydney Airport car park profits soar to record highs on back of fat margins The ACCC has said Sydney Airport’s huge 73 per cent profit margin on car parking shows it lacks competitive pressures on pricing.