Older race V12s. If you like the rumble of a big V8 and think it's intimidating. Compared to the screechy howl of a 330 P3, it's like the bark of a Rottweiler against the bellowing cries of a Cerberus, the three headed demon hound that guards the entrace to the underworld. This is the difference in sound, one you take notice of its potency but the other you feel fear and chills run down your spine.