If I had a computer riding with me it would say things like:
"Slow down you mad twat!"
"You just missed your turning, d***head!"
"Shit, we are nearly out of fuel, I told you to fill up back there but you just ignored me!"
"You should have had a piss before you put your leathers on!"
"Lemme off! Lemme off!"
Do Garmin make such technology?