Sports sedans are the most modified full bodied cars in Australian motor sport. Typically they commence build using a steel tube ”space frame” chassis, add mechanical components, composite body panels which can resemble the family sedan or transform a sports saloon into something more exotic with the addition of wheel arch flares to accommodate the wide slick rubber, plus front spoilers and a large rear wing to generate downforce. The most successful cars in recent years have sourced power from a 700+ horsepower 6000cc V8 engines and transmit that power through a 5 or 6 speed transaxle rear end. The result is the fastest cars with a roof, and in many instances these cars are knocking on the door of recording fastest outright track laps at circuits nationwide. Alternatively a number of competitors have purchased or built American style Trans-am race cars that are eligible under the present rules and able to compete competitively with the Aussie built sports sedans.