The relatively relaxed regulations mean that Sports Sedans are the fastest domestic "tin-top" racing series in Australia.

At circuits such as Mount Panorama, Queensland Raceway, Phillip Island, the Sports Sedan lap record is at least a second, and usually several seconds, faster than Supercars, despite the latter being a fully professional series generally regarded as featuring Australia's best local drivers.

It was discontinued for 1982 with the introduction of an Australian GT Championship, although Sports Sedans were invited to compete in this new series, which many did as it was the only national series their cars were eligible for, but the older Sports Sedans were generally un-competitive against the new GT cars such as the Porsche 935 or the converted Chevrolet Monzas.

While the power of the top Sports Sedans, which generally ran 5.0L or 6.0L Chevrolet V8 engines, was not far shy of the GT cars, the Sports Sedans were restricted to running 10" wheels while the GT cars such as the 935's were allowed up to 18" of rubber.

The Australian Sports Sedan Championship title was revived in 1991 and was contested annually through to 2003.