[PrematureApex]

Originally Posted by M3 Adjuster

A Subaru has a distinctive sound because of the type of motor, as a boxer motor, but of course the sound is also very much related to down pipes, blow off valves, header and other exhaust pieces. Not sure why in the world you would assume that a Porsche motor would sound exactly like a Subaru.

Does the ford GT 350 knife edged v8 make you think of a Ferrari ?

I agree with gthal Apparently people also confuse engine sounds with number of cylinders as well.

Actually, Subarus (at least some of them, not all these days) sound distinctive because of their unequal length headers. That's what generates the "boxer rumble"...the unequally spaced exhaust pulses.

The new WRX, for example, still has a boxer...but no more rumble, because it runs equal-length headers. Sound much like any other turbo 4, as will the P-car...with slight variations, as you said, based on primarily the exhaust configuration.