One of the annoyances my wife always goes nuts over is when driving to her mom's house (almost every weekend). I am consistent with my need to drive slow for economy and safety reasons (I invented this safety reason as added ammunition when we are driving the kids around). When she is running late she need to put on her makeup in the car which means I get to drive
. So I pick the right lane (which is supposed to be the slow lane here in the US) and lock in to my ~60mph safe and economic mode. I always hear "the speed limit is 65 you know" with the implication of "drive 70-75 and you can probably get away with it, and mom won't be mad at us". The difference in time is 24 min at 70mph -vs- 30 min at 60. 6 min should not matter so much. Especially if you consider the safety of kids and the added benefit of no risk of a speeding ticket. What man here would want to speed to his mother-in-laws anyway?