Flat plane crankshaft?

[wheelzman]

I was reading a car mag today and they stated that the new 350 Shelby GT Mustang used a flat plane crankshaft.  I had no idea what that meant so here it is.

jalopnik.com/what-is-a-flat-plane-crank-and-why-is-it-so-loud-an-ex-1659688239


www.youtube.com/watch?v=yRV15Xs7iag