Any sort of sound generator idea sounds just so mind-blowingly disingenuous and stupid, I can hardly believe it.
If Hyundai does this instead of just giving it a good exhaust, design and tuning, it truly hearkens back to the dark days of real rice.
If BMW does this, they've really lost their way, especially with all that electric steering bs and all the not so great decisions they've made in recent history(the original variable ratio steering rack, bangle-ization, the slow death of any sort of I6, The puzzling inability for BMw to make I-Drive as compelling a Audi's MMI, etc.) . This kind of stuff like engine noise should be genuine and reflect the personality of a car, not be used as "make-up on a pig" kind of thing. Anyone that appreciates a car loves the sound a real engine makes not some electric keyboard fakery.