What defense is there to stop a carjacking. I have had two cars stolen. One from work and one out of my driveway. Living North of Detroit in the suburbs, I am seeing many crimes commited by people from Detroit and although I have not been carjacked yet, I am wondering if there is any defense against someone getting the drop on me. One guy a few miles away driving the same car I plan to drive was carjacked, beaten and left for dead. Saved his own life by crawling to a neighbors house for help. I already have a health problem, (Diabetes), and sure don't want to get myself injured. I am aware there is an obvious cure which is to just move from my lifelong home but I cannot do that right now so any ideas would be welcome. BTW, a 50 cal would look to weird mounted to my hood.