Quiz: How do emissions regulations influence engine design and tec July 3, 2025 by Alex Turner How do emissions regulations influence engine design and technology? Discover more about Vehicle Engine and Automobile at our home page. A) They require the development of cleaner combustion processes and advanced emission control systems. B) They have no significant impact, as manufacturers can design engines freely. C) They only affect the size and weight of the engine but not its performance. D) They lead to an increase in engine horsepower without any changes in fuel efficiency. Submit Answer