Garth Tander is back On the Grid this week - literally - racing in Porsche Carrera Cup at Sydney Motorsport Park. He chats how important being sharp for the enduros is, who he most wants to beat in the Porsche Pack, Penrite Racing's upwards trend and just why it's so hard to be consistently competitive in Supercars. PLUS our instant reaction to the news that friend of the show Hunter McElrea will become an IndyCar driver this weekend. 

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