We're not entirely sure what's going on here (though we have a pretty good idea), but it's somewhere between bizarre and amazing. Human reproductions of car sounds typically focus on the basics, perhaps with a little embellishment: four-cylinder cars, a turbo spooling, and, of course, the chitter of a blow-off valve. But here we have something different: the full-throated roar of a V-10 Lamborghini engine.
While we're thoroughly impressed with the quality of the sound and the novel method, we do worry about that guy's clutch. Those are some long shifts, and there's a bit of rev lag after each. Might want to get that looked at.