Comment by magduf

Perhaps, but the very nature of carjacking is that it's a violent crime against you, not just your car. Yes, the end object for the criminal is stealing your car, but many carjackings have resulted in severe injuries or death for the victims, which is why it's actually legal in South Africa to have flamethrowers mounted on your car to protect yourself from them (!). These crimes should be treated as attempted murders, and I have a hard time imagining how someone can be "too vigorous" in defending their very life from someone who is actively trying to murder them.