The engine noises I heard from the BMW i8 were ridiculous - not that they were bad but just because it seems so childish. It's like you're a 5-year-old sat on a chair making BROOM! BROOM! noises.
An example is on this YouTube video [0]. First you can hear the electric acceleration, then the driver then slows down and switches on the engine noise. It even simulates the noise of gear changes...
An example is on this YouTube video [0]. First you can hear the electric acceleration, then the driver then slows down and switches on the engine noise. It even simulates the noise of gear changes...
[0]: https://youtu.be/yerTSDJtJmM?t=6m29s