Strange, I can always maintain a good 30ish along this road, without any issues or cruise control doing the work etc... You should check your speedo once in a blue moon and learn how your car feels/engine sounds and responds, at ~30mph if you keep exceeding 30 along the road. I know when im putting my foot down a little more than I should, and if I can hear the how the engine is responding in a car so refined as the 75, im pretty sure anyone else can!!
It seems to me that some people are just looking for some sort of argument/excuse for breaking the law here; speeding is breaking the law, don't do it, and if you get caught doing it, accept the consequences. I knew I put my foot down a bit when I got done for speeding, I ccould'nt see the busy as he had the doors on his van open and no flurescent jacket, but I just paid the fine, took the points, and got on with life - I was the one breaking the law by speeding, he was just doing his job. Life's a bitch, I am known for driving like a priest, the one time I put my foot down, I get caught for it haha, typical my bloody luck when some of my mates can't drive at anything less than 10mph over the limits, but it is just that, the luck as to whether you get caught or not.
The same people who tend to moan about speed enforcement targetting innocent (law-breaking) drivers, are the same people who tend to moan about all the young lads who go speeding everywhere and how there isnt enough done about it etc!!