The difference in sound is due to the exhaust manifold design.
American v8's with (I might be wrong on the name) 180 degree headers...... (they have a tube or two running underneath the engine, which connects one exhaust port per side to the collector on the opposite side of the car).......... sound very strange and much like a Ferrari.
This header design also optimises the exhaust scavanging principle, for more power than ordinary headers.
__________________
If you think no one cares, try missing a few payments.