I have driven a plug-in for quite a while; 2013 Chevrolet Volt, 2017 Chevrolet Bolt EV, and 2018 Chevrolet Volt.
I relish the quiet drive experience.
I hope Aptera makes good use of sound dampening materials on the interior of the vehicle. It makes a huge difference – even given a highly efficient aerodynamic design.
Look forward to your progress reports, design details, and hopefully parking an Aptera in my garage!
https://www.aptera.us/forum/main/comment/60762a51aa8e1c0015bc78f2
reason for sportiness:
although quiet is ideal in life in general, its not good for people to get too bored driving so much so they try to entertain their selves by playing on their phones as younger people do nowadays. yes theres is music, podcasts, radio etc but people still are often into their phones. making driving more interesting keeps drivers attention, which is what sports cars happen to do when used what they were made for, but there is also hypermiling without partial self driving stuff. see under "SPEEDOMETER", and the stuff about pedal around there.
https://www.aptera.us/forum/main/comment/6089c2065d0c250015c53875
to make driving more entertaining, encourage hypermiling and enhance perceived quickness of car https://www.youtube.com/watch?v=_V_HjDMU6js the feeling of quickness is not directly correlated with actual quickness. car should like extension feel more like a glove than a remote control for a robotic arm
enhancing the feeling of speed can make a driver who isnt worried about getting somewhere faster feel hes going to faster over the speed limit, encouraging him to drive slower, increasing experienced range, and driver would only go faster if they want to get somewhere faster thus actually check the speedometer often to drive as fast as legally possible. a more interactive driving experience also incentivizes driver to be more attentive to driving rather than getting bored and distracted by phone texting or something.
https://en.wikipedia.org/wiki/Noise,_vibration,_and_harshness#:~:text=Noise%2C%20vibration%2C%20and%20harshness%20(,vehicles%2C%20particularly%20cars%20and%20trucks
monotonous sound is often not recognized b/c its "white noise", and non constant rate of bumps being felt on road sometimes knocks the daydreaming out of people, which is good for bringing attention back to the road.
unique sound?:
low aerodynamic friction around occupants make wind noise very low compared to other cars with same level of noise dampening, especially if it was tandem 2 seater https://www.aptera.us/forum/main/comment/607c74a6da92970132747547 .with less wind noise and less noise dampening, driver can hear hear wind noise of other cars relative to their location on road, so u can know when a car, even a electric car, is coming near you by wind noise alone. hearing more of the outside environment is something one arguably wants for same reason why someone would want to walk in around the neighborhood or at a park (feeling more of the environment is why people like the roof down in "convertible" cars) . of course nobody wants things to be "too loud", at least so people dont have to raise their voice talking in car. hopefully you can get more fresh air in the car than other cars, that would increase the driving interactivity.
audio G force meter concept for unskilled drivers: https://www.aptera.us/forum/main/comment/60b30010e66a1e0015293e6
Helium/air junctions and inducing inaudible vibration on panels are some light weight methods of reducing noise transmittance. The latter could be employed automatically by the car in response to ambient sound when say, driving on gravel. Soft bushings and a rattle free interior also go a long way. Nothing ruins my driving experience more than cabin rattles.
But I imagine the resin wheel skirts may be a different substrate and generate some noise if gravel is expelled from the wheels. Of course the two front wheels are external/separate from the body whereas the single rear wheel is not.
I remember in the 70’s when I spray coated the entire underside of my vehicles for rust proofing ( Poor metal used in cars back then😔 and I lived on the east coast ) AND for sound deadening.
My wife has a high end vehicle and they have a wheel well finish that looks and feels like felt to deaden noise generated in the wheel well.
My concerns are not those of the general public ...
as I live in a state with lots of primitive roads. I personally commute seven miles to pavement. But it is a small price to pay...to live in nature🙂
We 'do' have the experience from Aptera V1.0 to draw upon - shell is essentially the same.
I just don't know how the V1.0 vehicle performed, noise wise. I'm particularly attuned to road noise.
Yes this resin infused composite shell is not used in any other vehicle so it would be interesting to see a side by side decibel reading comparison with it and say a Tesla or other top commericaized EV...at say 60mph on a highway