i think men can be more reckless, because they enjoy danger, but women can be more easily distracted, like seeing something shiny outside the car and slowing down.. so it really depends. and i just say that from observing members of my own family. like my mom will forget to be cautious the second she sees a pretty christmas display. and my older brother drives way too fast and has the kind of sound system that can be heard from a block away, that vibrates your ear drums when you're in his car.