Cars today are safer than ever. They can brake automatically, warn drivers about blind spots, and even steer themselves back into lanes. Yet accidents still happen every day on roads around the world.

Car factories used to run on fixed schedules, predictable assembly lines, and large amounts of manual labor. That model is now under pressure. Vehicles are becoming more complex, especially with electric drivetrains, software systems, and custom features.

At first glance, today’s vehicles look more advanced than ever. They are faster, safer, and packed with technology. Yet many drivers still notice something strange. Cars have not become dramatically lighter in the way people expected.