As vehicles grow ever larger in the United States, their “safety” benefits for drivers diminish while the danger for pedestrians and other drivers rises. From SUVs to oversized pickup trucks, the shift toward heftier cars has become normal for many drivers seeking a sense of security. But beyond a certain weight, these vehicles offer no extra safety to drivers and make the roads more hazardous for others. Removing just the heaviest vehicle fleet could save many lives on the road.