Shane Smollen prevails in the fourth and final race of the weekend for the combined APC and GT4 category.
Smollen led from start to finish, ahead of Steve Jukes and Mark Griffith in a chaotic outing which saw multiple safety car interventions.
Also clean sweeping their respective class was Grant Sherrin, who claimed win number four for the weekend ahead of brother Iain Sherrin, while Cameron Crick rounded out the podium places.
A perfect three for Shane Smollen (GT4) and Grant Sherrin (APC) after the duo once again claimed top honours in their respective classes at Sandown.
Smollen, who now has a healthy gap at the top of the GT4 standings, was never headed in the third race of the weekend, beating second place runner Steve Jukes by 16 seconds.
Meanwhile, Sherrin was again the only APC representation in the outright top five, pipping yet another podium finish while taking the category honours ahead of Iain Sherrin and Coleby Cowham.
Shane Smollen (GT4) and Grant Sherrin (APC) made it two from two for the day after another incredible performance in the combined categories second race.
Smollen finished almost five seconds clear of his closest competitor in Steven Jukes, while mark Griffith was impressive in third.
It was another outright top five for Sherrin, who crossed the line in fourth place ahead of his closest class competitor in Lindsay Kearns.
Shane Smollen took a stunning victory in the first combined APC and GT4 class race after a final lap overtake on the long-time race leader, Karl Begg.
Begg took the lead of the race in the early stages and was able to hold off the valiant Smollen for the entirety of the 30-minutes up until the final time around, having to settle for second.
Finishing in third place outright and taking APC honours was Grant Sherrin, who found himself battling with the GT4’s in the later stages of the race before securing the final podium position late on.
Coleby Cowham would finish in second place for APC while Cameron Crick rounded out the top three.
Shane Smollen (GT4) and Grant Sherrin (APC) have been awarded pole position in their respective classes after an intriguing qualifying session.
The GT4 series leader finished two-tenths of a second ahead of rival Karl Begg, with the top-two in a class of their own as third place Mark Griffith finished almost one whole second back.
Meanwhile, Sherrin went half a second faster than Coleby Cowham in second for the APC class but will have Cameron Crick and Iain Sherrin on his tail at the start of Race 1.
Mobil 1 Australian Production Cars and Monochrome GT4 Australia Practice 1
Shane Smollen continued his run of good form by going fastest in the GT4 class ahead of Karl Begg in challenging conditions.
Meanwhile, APC saw Hadrian Morrall stake his claim as the early driver to beat, topping Jake Camilleri by more than one and a half seconds.
The session saw challenging conditions throughout, with red flags being waived and drivers going off track on multiple occasions.