I've been practicing kung fu chops with my left hand out of the open driver's side window. I think I'm good if someone attacks me from that side.
pikachu
what if they attack from the other side?
Do you just pee on them?
Common sense.
I don't drive to shady areas. Never felt I needed a weapon in my entire driving life.
Radar detector. Insurance rates from tickets will kill you.
As far as physical danger? I live in an area where I don't need to worry about it, at all.
Just don't speed. This isn't being an internet snob- it just saves you guaranteed money and headache than using radar.