I am going to step into this again.
The sound of a Ferrari V8 engine is unique to V-8 engines because it has a 180 degree crankshaft. A 180 degree crankshaft in 90 degree V-8 allows the engine to fire alternate banks of cylinders all the way through the firing order. You can also alternate banks with a 120 degree V-6, or a 60 degree V-12. A V-8 with a 90 degree crank fires right, left, right, right, left, right, left, left.
I know the exhaust system does affect the sound. But look at it this way. You can take a trumpet that Miles Davis has played, hand it to a 13 year old kid in Junior high band, and the kid is not going to sound like Miles Davis.