Lexus has imported three V8-powered touring cars that could be a forerunner for the manufacturer's potential entry into V8 Supercars one day.

The three IS-F models, which were built for the Italian-based Superstars International touring car series, have been imported by Lexus of Brisbane for, according to dealer principal Andrew Scifleet, "customer experience days and promotional events" while adding the dealership was "in discussion about potential racing use".

The cars will be on display at the Lexus-sponsored Brisbane International tennis tournament from December 30.

Lexus is the luxury vehicle division of Toyota, which is the number one seller in Australia, with the IS-F model part of the make's F Sport sedan range.

Lexus was first linked with V8 Supercars in November 2010 when Lexus Australia boss Tony Cramb had an "initial meeting" with series officials at a Melbourne Cup luncheon.

While at the time he denied a V8 Supercars entry in the foreseeable future, he added, "The IS-F would make a great V8 Supercar, wouldn't it?"

Though the imported IS-F touring cars have Toyota Racing Development 4.7-litre V8 engines, the road-going version of the model features a 5.0-litre V8 engine, which would fill the engine requirements for a V8 Supercars entry.

Four manufacturers will be represented in V8 Supercars in 2013, the first season of the Car of the Future regulations, with four factory Nissan entries fielded by Kelly Racing and three customer AMG-prepared Mercedes-Benz entries from Erebus Motorsport/Stone Brothers Racing taking on series regulars Ford and Holden.