I grew up around motorcycle drag racing, which exposed me to the sound of both motorcycle and car race engines at extremes. Top Fuel and Funnycar auto engines can really only be experienced in person - you can&#x27;t get that sound from any sound system. They make the ground shake!<p>I was fortunate enough to hear motorcycle drag racing during the diverse design days of the 1970s. The choppy thrum of a Kawasaki Z1, the shrill buzz of three cylinder two stroke Kawasaki 750s, the intense bass of a twin-engine top fuel Harley... these sounds are still part of my consciousness, decades later.