That's a fairly medium paced road & there's camouflaged speed cameras in that area for just that reason. We can thank our motorcyclists for that, who do ridiculous speeds...100km+ (almost triple) over the limit in some sections . But, yeah driving spiritedly through Adels twisty roads it's a confidence thing but, not the place where you want to test your limits . And Pauly when are you going to actually make it out to one of SAU-SA's outings?
Doubt it & don't know of any roads with arrow shaped striped markings on one side of the road then on the other like they have in Japan. Adel hills does have similar style roads but, usually there'd be a hairpin or two thrown in.