The difference is that traffic deaths are caused by accidents, preventable perhaps, but not deliberate acts. Most "gun deaths" are a result of someone's deliberate act. No amount of *legitimate* safety features are going to prevent those acts. Thus all the cries for "gun safety" laws, are just smokescreens for more gun control.
Nice try, but no Kewpie doll.
First Reports Evaluating the Effectiveness of Strategies for Preventing Violence: Firearms Laws
Methods of suicide among persons aged 10-19 years--United States, 1992-2001.