Complex sentence: The increasing trend is to make engines smaller yet more efficient, for example removing a V8 and replacing it with a supercharged V6, which results in much better fuel economy but not compromising on power or ability.
Split into simpler sentences: The increasing trend is to make engines smaller yet more efficient. For example, removing a V8 and replacing it with a supercharged V6 results in much better fuel economy without compromising on power or ability.