Not only does your mileage suffer from faster driving...but I'd guess your chances of losing it increase exponentially.
I've driven "fast" at times...and I've noticed a direct relationship between speed and the ability to control...so I try to understand this real time.... My motto? Drive faster...watch your aster? Or something like that.
caution: old fart talk
Give a boy a gun-give a biatch a cell phone-and pretty soon you almost got yourself a police state.
Orwell said: War is peace! Freedom is slavery. Ignorance is strength...
When i do travel back home (20 miles each way) I usually will drive at 60-70mph, depending how the person in front of me. I like to go whatever their speed is.