Shane van Gisbergen and his Stone Brothers co-driver Luke Youlden will start on pole position for V8 Supercars' Sandown 500 on Sunday after van Gisbergen won a wild second qualifying heat.
The race proved disastrous for most of the usual frontrunners, with Craig Lowndes the only one of the generally dominant Triple Eight/Ford Performance Racing quartet to finish in the top 10 - and he was only seventh.
Points leader Jamie Whincup had surged his Triple Eight Holden into the lead from second on the grid at the start. He then held off van Gisbergen, who started on pole thanks to Youlden's win in qualifying race one, until locking up and sliding off the road on lap 13.
Amazingly Whincup then went off again on the next lap, and this time hit the tyre wall. He was able to get going again and finish 19th.
Fortunately for Whincup all his main rivals were also in the wars. His primary title threat Mark Winterbottom (FPR) could only make it up to 16th after his co-driver Steven Richards' incident in the previous heat.
Winterbottom's team-mate Will Davison was involved in first-lap contact and then picked up damaged when James Moffat and Lee Holdsworth tangled in his path at half-distance. He will start on the back row on Sunday.
Lowndes ran off the road following a safety car restart but was able to battle back to seventh.
Once Whincup had dropped down the order, van Gisbergen was able to pull away from David Reynolds and clinch Stone Brothers' second win of the day.
Garth Tander completed the top three.
Results - 20 laps: Pos Driver Team/Car Time/Gap 1. Shane van Gisbergen Stone Brothers Ford 25m32.6693s 2. David Reynolds Rod Nash/FPR Ford + 3.0274s 3. Garth Tander HRT Holden + 5.9716s 4. Tim Slade Rosenberg/SBR Ford + 7.3588s 5. Michael Caruso Garry Rogers Holden + 12.6230s 6. Rick Kelly Kelly Holden + 12.8124s 7. Craig Lowndes Triple 8 Holden + 16.4835s 8. James Courtney HRT Holden + 17.4686s 9. Jonathon Webb Tekno Holden + 18.2465s 10. Jason Bright Brad Jones Holden + 18.2479s 11. James Moffat Dick Johnson Ford + 18.9533s 12. Steven Johnson Dick Johnson Ford + 20.4284s 13. Lee Holdsworth Stone Brothers Ford + 20.9392s 14. Tony D'Alberto D'Alberto Ford + 22.0212s 15. Russell Ingall Walkinshaw/HRT Holden + 22.3070s 16. Mark Winterbottom FPR Ford + 22.7164s 17. Todd Kelly Kelly Holden + 23.6294s 18. Fabian Coulthard Brad Jones Holden + 23.9580s 19. Jamie Whincup Triple 8 Holden + 24.4774s 20. David Wall Britek/BJR Holden + 26.3544s 21. Dean Fiore Triple F/DJR Ford + 27.2253s 22. Steve Owen Paul Morris/DJR Ford + 28.3058s 23. Alexandre Premat Garry Rogers Holden + 30.3326s 24. Michael Patrizi Tekno Holden + 32.3779s 25. Karl Reindler Kelly Holden + 34.4652s 26. Greg Murphy Kelly Holden + 46.2385s 27. Will Davison FPR Ford + 2 laps 28. Taz Douglas Dumbrell Holden + 2 laps