YSK Speeding almost never is worth the risk. On a 60 mile drive, going 90mph instead of 70mph, will only save you 11 minutes. On a 10 mile drive, it will save you less than 2 minutes.
from /r/YouShouldKnow
YSK 超速行駛幾乎從來不值得冒險。在60英里的車程中，時速90英里而不是70英里，只能爲你節省11分鐘。在10英里的車程中，它將爲你節省不到2分鐘。