What part of the country do you live in because I think that has some weight in the discussion. I drive the same speed regardless of the time of day but find that anything less than 15mph over the limit will not even bat a lash on a waiting cop. If the limit is 55, I'll go 69 (tee hee). 65 = 79mph. No issues in 15 years using this formula. I know other parts of this country are different but the bottom line is to not be an outlier. That's where you run into trouble.
The views and opinions expressed in this post are those of the author and do not necessarily reflect the official policy or position of Bimmerpost.
2014 CC R-Line DSG | 2010 S4 Sold | 2010 BMW 135i Retired | 2006 Lotus Exige Sold