What should a 9,000-pound electric vehicle sound like?

Each Wednesday I challenge the Blog Staff to a creative prompt.
I borrowed this week’s prompt from The New Yorker Magazine’s Instagram:

       “A zero-emissions vehicle has obvious benefits for the environment,
       but a quiet car is a mixed blessing for the public good.” For 
       distracted pedestrians, engine sounds signal a car is coming.
       What if they can’t hear it? So, electric-vehicle companies are
       trying to come up with a sound for their noiseless cars.

Our bloggers answered the question: What should a 9,000-pound electric vehicle sound like? 

Here are a few of their responses:

Indy Behr:

Since pedestrians are already used to the roaring sound of a gas engine being a sign that a car is coming, I think that if electric cars had a speaker that simply played the sound of a gas car, no one would have to adjust their expectations. If we had a beep or something like that to signify an electric car approaching many people would take time to become acquainted with this, and during that transition period I imagine more people would be struck by cars. Therefore, the sound of a gas engine would be a perfect solution.

Levi Kassinove:

Option One: Silence. 1 minute of complete silence, interrupted halfway by the faint sound of a child laughing. This is followed by 3 minutes of silence, interrupted for 2 times at random intervals by leaves rustling and a stick breaking. 10 minutes of silence will now go by, followed abruptly by screams of utter horror as the car has now become sentient and is actively trying to make the driver crash. People miss the sound of their gas engines? Well, now they’ll be begging for quiet. 

Option Two: Play “Goin’ Down the Road Feeling Bad” by Grateful Dead on repeat.

And the class favorite . . . .

Penny Andreas:

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Do you have a suggestion? Should our electric cars beep? roar? play music? hum? purr? Play along. Leave your contribution in the Comments.