Safe driving saves people's lives.
Automobiles carry people at very high speeds.
The impact of driving into a wall at thirty kilometers an hour is as about the same as jumping to the ground from the fourth or fifth floor of a building. That is why car bodies are made of strong materials and why cars have safety devices. If a car's safety equipment does not work correctly during an emergency, the lives of the driver, any passengers, and people near the car could be in great danger. Automobiles should be carefully and regularly inspected to make sure they will run safely. Exhaust systems must be checked to prevent air pollution.