Although I don't condone doing 175kph on a public road, under any circumstances, if you wanted to choose the safest public area to do it in, Smith St to Helensvale is it...
1 northbound emergency lane, 4-5 northbound traffic lanes, another northbound emergency lane, 2 lane wide median with those bendy cable barriers, southbound emergency lane, 4-5 southbound traffic lanes, and another southbound emergency lane... Dead flat, dead straight... a total of 1 entry and exit northbound, and the same for southbound... Basically a 110kph limited airstrip...
If you get caught doing 175 on a public road, then your going to go down, so be it... No complaints from me... It's when the cops start booking people for 125kph on the same stretch of road that I start to fume...