Quiz: How does engine size affect a vehicle’s power and fuel effic May 20, 2025 by Alex Turner How does engine size affect a vehicle’s power and fuel efficiency? Discover more about Vehicle Engine and Automobile at our home page. A) Larger engines generally produce more power but are less fuel-efficient. B) Smaller engines produce more power and are more fuel-efficient. C) Engine size has no impact on power or fuel efficiency. D) All engine sizes provide the same fuel efficiency regardless of power. Submit Answer