[ricardobeat]

This already exists. The Nissan Leaf emits some cool sci-fi sounds by default, and I heard a dealer mention it can be replaced with a large selection of sounds by specialized auto shops.

[nfriedly]

If I ever get one, I totally want it to sound like the car on the Jetsons - https://www.youtube.com/watch?v=QdWswvLPdE0