I was walking past Moscone a few days ago just as, for some reason, they were driving a Model S and Roadster inside the Oracle show. (I have no idea why they we

I was walking past Moscone a few days ago just as, for some reason, they were driving a Model S and Roadster inside the Oracle show. (I have no idea why they were at the Oracle show, but I was happy to have the chance to snap some pictures.) They were perfectly silent. I was admiring the Model S when the Roadster came up behind me and I had no idea it was even there until someone said something. It was moving slowly, but I've heard golf carts that were louder at the same speed. I once got to drive an EV1. It included an electronic noisemaker for exactly that purpose, to keep pedestrians alive. Expect government regulations if Tesla doesn't do something first.