Herald Sun - Motoring - - CARSGUIDE CONFIDENTIAL - Twit­ter @paulwardgover

THE best way to tur­bocharge your air­con­di­tion­ing on a hot day is sur­pris­ingly sim­ple.

“Open the win­dows,” says Nadeem Ar­shad. “Even if it’s 40 de­grees out­side, it’s go­ing to be 65 or 75 in­side. So get­ting air that is cooler, even if it’s still rel­a­tively hot, is the best thing.”

It’s great ad­vice for nor­mal mo­torists from one of the world’s lead­ing lux­ury brands.

Ar­shad, the air­con ex­pert at As­ton Martin, is get­ting his first ex­pe­ri­ence of Aus­tralian con­di­tions by driv­ing a cam­ou­flaged pro­to­type for more than 9000km through the out­back and Top End.

He — and we — can’t talk about the fu­ture As­ton but he still has plenty of ad­vice on max­imis­ing cabin com­fort.

“You need to pull the cabin tem­per­a­ture down as quickly as you can. Once you get some fresh air in­side, it helps the air­con­di­tion­ing do its job.”

He says the de­fault set­ting should be 22 de­grees and us­ing the “re­circ” but­ton will con­tin­u­ally cir­cu­late the air with­out hav­ing to do too much cool­ing. Get the oc­ca­sional burst of fresh air through the win­dows to add oxy­gen to the sys­tem.

But Ar­shad also has ques­tions about Aus­tralia, af­ter en­coun­ter­ing our bluesky heat dur­ing the test drive.

“We’re won­der­ing if we need to re­cal­i­brate our in­stru­ments. The high­est so­lar load­ing (in­dex) we had seen was around 1100 in Dubai, but we’re get­ting 1450 here at Alice Springs. Could that be right?” he asks.

My an­swer is as sim­ple as his ad­vice on cool­ing: “Wel­come to Aus­tralia, mate.”

Sprung in The Alice: Pre-pro­duc­tion As­ton Martin DB11. Pic­ture: Michael Robert­son

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