QUESTION: This is a question I've pondered many times. With many cars and motorcycles on equal footing with respect to specific output (i.e., horsepower per unit of displacement), why is it that motorcycles persist with employing an individual throttle body for each cylinder whereas in automobiles a single throttle body suffices? Granted some bikes do produce higher specific output than many cars, so I assume there's a performance advantage. Still, many bikes overlap cars with respect to horsepower per liter yet still come equipped with individual throttle bodies. Seems to me that motorcycle manufacturers could take some cost out both for themselves and, later, for customers by adopting a single throttle body, since the maintenance to synchronize them would be eliminated.