Brodie Kostecki has fired a warning to his Supercars rivals, saving his best for last to top the final Tasmania Super 440 practice.
Dick Johnson Racing star Kostecki navigated Symmons Plains Raceway best to clock a lap time of 50.948 seconds in Friday's second of two practice sessions.
He pipped reigning Bathurst 1000 winner Matt Payne by 0.010 seconds, with PremiAir Racing rookie Jayden Ojeda a further 0.037 seconds behind in third.