Accident injuries are the leading cause of death for teenagers in California and around the country. Lawmakers and advocacy groups have been trying for years to lower the risks of driving for young people, but their efforts have borne little fruit. A study published...

The National Highway Traffic Safety Administration developed its 5-star vehicle safety rating system in the 1990s from an earlier program called the New Car Assessment Program. The rating system continues to guide many prospective car buyers in California and across...