The risks of injury in an automobile accident should absolutely weigh into the calculus of car ownership. Especially considering the staggering amount of progress made in vehicle safety in the past 10 years. If a brand new Camry saves you from a single ER visit that you would have had driving an 2008 Camry, then it's already paid for itself.
It's not really any different from buying a fancy $150 toothbrush that does a better job at preventing cavities, or any of the many other purchases that statistically save you money in the long-term.
