I happened to watch "The Elio Awakens" on YouTube.  About halfway through there's the cutaway animation of the pistons moving in the engine, and it suddenly struck me:  We've seen pictures of the new engine installed in the P5, but are there any recordings anywhere of how the engine sounds?  Does it sound like a wild beast ready to be released?  A herd of asthmatic squirrels on speed?  Like a Harley?  (which would be really cool and very illegal, since Harley has copyrighted the distinctive Harley sound.)