Woman. general motors attempted mary barra to be the company's next ceo starting in january. she is the first female to lead one of the big three auto makers and the workers she'll be overseeing, mostly men. just 21% of the nation's autoworkers are women. for barra, the auto industry was a no brainer. she was simply following in her father's footsteps. >> automotive is kind of in my blood. i grew up in southeastern michigan. my dad was dye maker at general motors for thine years. from the days you stood outside the dealerships looking at the new vehicles, that was how i was raised. >> at 18 sh...