For a driving enthusiast, there's nothing like the throaty roar of well-tuned engine. However, as vehicle noise regulations, technological advances, and general increases in build quality have continued to make vehicles ever quieter both outside and inside, some automakers have been seeking ways to preserve and enhance the visceral sound of an angry engine for their performance oriented models. For example, Ford includes a sort of sound pipe that channels induction noise into the Mustang's cabin. BMW, on the other hand, has taken a different approach with the new M5's Active Sound Design technology, which artificially replicates engine noise in the cabin using the stereo system.
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If this is not the definition of rice then I don't know what is....