Politics aside. Road deaths uk 2008 around 3000, fatal stabbings around 300. You might say stabbings are intentional, I doubt that when talking about most teens, that is a bit like saying all adult bad driving has the intent to kill. I do not know what the answer is. I hate cars, I drive a car 15 years old as I would rather spend my money else where. There is something sickening when the comfortable but ignorant middle ground get motivated like this from all political parties, they do not like to miss a trick when they see one.
All the losses are tragic but not our fault or that of the individual weapon/car involved.