Former dual champion Will Davison has topped the timesheets in Saturday's opening practice session for the Bathurst 1000 at Mount Panorama.
Holden star Davison clocked two minutes, 4.75 seconds in the 30-minute session as the 26-strong field got in precious track time before Sunday's Great Race.
Provisional pole sitter Scott McLaughlin did not feature in practice but his Ford co-driver Alex Premat impressed, finishing fifth fastest.
The session was largely drama-free as teams opted to practice pit stops in the 30-minute window.
IndyCar driver James Hinchcliffe provided the only anxious moment when he clipped the wall at The Cutting with five minutes left in the session.