The IRWIN Racing crew are just about set for tomorrow's Supercheap Auto Bathurst 1000 after setting the seventh fastest time in final practice at Mount Panorama.
Holdsworth set his best time on full tanks, giving an indication of the solid car balance in the IRWIN E63.
With a number of teams running in shootout specification, including fresh tyres, Holdsworth kept new rubber in the garage and still sat comfortably inside the top-10.
The session went without a hitch and it was a relaxed IRWIN crew throughout the practice period.
Holdsworth and co-driver Craig Baird will have a final 20-minute warm-up session on Sunday morning before the 161-lap race at 10.30am local time.