I'm sure it can be done but the question is whether someone wants it. Many in that class would probably adjust quicker to the silence of EV's than a lie.
Do keep in mind that engine noise is not only beneficial to the driver but cyclists, other motorists and at crosswalks as well.
It's not a problem that is easily solved and satisfied by all parties.
As a pedestrian, I disagree. Cars make far too much noise. People will adapt to them being quieter by using their eyes and looking both ways. I look forward to the day when living in a city doesn't mean hearing a constant drone of traffic.
We have to do everything in our power to make sure cars don't have "ringtones".
No, seriously, I think you do the blind a disservice. I don't think that blind people rely on, "Hey, did I hear something" to mean, "I can blithely cross the street without danger."
Cars are smaller than trains.