Thats what I was thinking maybe its just wind hitting my car or my imagination I only hear it in the 4am in the morning though when its super quiet going to work . I bought my car with 25 miles on it! I never own a muscle car before this my last car was a prius lol!A new car, an unfamiliar car, being operated at high speeds and under acceleration making a noise that can only be heard when paying close attention could be your imagination coupled with some extra anxiety from having a new car and fearing something is wrong or going wrong.
If the noise is not normal but a sign of a problem it could be any number of things.
My advice is arrange for a ride along with someone at the dealer service department -- shop foreman is a good choice -- and demo the noise to him. If it is not "normal" he will know it.
It is on different part of the road mostly when im going a bit higher incline im going up in elevation then when im going down it seems to go awaydo you hear the noise on two or more different roads ?
New asphalt ?
Sometimes they put small grooves in the road and it will make tires 'sing ' a little.
if you hear it on a few different roads, you may hear your gears 'also' singing a little. They do a little on my Jeep Gladiator, it has the ZF 8HP like the Challenger. They are new and not broke in yet, 1540 miles.
I bet its the same for your gears in the differential or ZF 8HP transmission, it makes a little whine sometimes but really quiet. It will get really quiet as it works in. My Challenger is really quiet, but it has 3k miles.
I can hear some whine sometimes in the differentials on the Jeeps sometimes, but I think its road, cause its not always there,
Unless its obnoxious I'd just monitor for a while.
does it sound abnormal?
My 2019 Scat had a substantial whine from the rear end at higher speeds. Reminded me of a 3.73 posi cruising at 75 or 80. If I took my foot off the gas it would go away and would return under even light load, and was there from the day I bought it and never changed. Pay attention to whether the noise changes when you take your foot off the gas.Are you hearing a gear sound from the differential? Many owners experience this.
Even with an audio clip of the noise a diagnosis over the 'net is at best an educated guess.Thats what I was thinking maybe its just wind hitting my car or my imagination I only hear it in the 4am in the morning though when its super quiet going to work . I bought my car with 25 miles on it! I never own a muscle car before this my last car was a prius lol!