But on second blush, I'm not so sure:
- If CAFE standards are raised, people will likely drive more thus emitting more exhaust because it's less expensive to drive: They'll spend less per mile on gas and the smaller high-gas-mileage cars (e.g., Toyota Corolla) cost less than larger cars (e.g., Toyota Camry.)
- Smaller cars have smaller engines, which have a shorter lifespan, which means more cars will sooner enter the landfills and require the building of more new cars, the creation of which is bad for the environment.
- Smaller cars are more dangerous--more people will die as a result.
- The new high-tech gizmos needed to improve gas mileage (for example, variable-interval valves) will cost the average buyer $1500 to $2500 more per car, which makes people less likely to buy a car, which will be yet one more nail in the U.S. automakers' coffin.
- And if people are still driving their old car, it's more likely to be a polluter, which will hurt air quality.