Supercars championship leader Broc Feeney will leave Perth with a pair of victories after a near-flawless display in the final sprint race.

Triple Eight ace Feeney survived late drama as he led from start to finish across the 83-lap, 200km race at Wanneroo Raceway on Sunday.

It was the 22-year-old's fifth win of the season, adding to his haul of six poles and eight podiums.

[Broc Feeney][Broc Feeney] Broc Feeney dominated the final sprint race to cap off a successful weekend in Perth. (Mark Horsburgh/AAP PHOTOS) A safety car with 20 laps remaining threatened to cause chaos for Feeney.

The first yellow flag of the weekend was brought out when Erebus rookie Cooper Murray came to a halt on the way to turn six after a suspected mechanical failure.

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It set up a re-staging of

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