Hello everyone,
first of all, thank you to all the wonderful people here for their quick responses, even to some stupid questions.
Talking of stupid questions, i have one and i will appreciate any feedback 
A little background, I have civic 2018 and i am not the first owner. I have been told that the car has not been into any accident.
When i bought it, i thought there was too much cabin noise, which i thought is because of tires, it had its original tires at around 65k odo. I got them changed (Chinese tires now - rest were too expensive :D)
But i still believe that the cabin noise is too much, at times at becomes unbearable, specially at highspeed. So, what could be the reason? I don't know what can be the possible reasons or what should i even tell the mechanic if i go to one. I know we have sound dampening sheets in market, but i believe the cabin noise is too much for a default stock car as well.
Should i get the doors seals checked? get it checked if its accidental? can it be a reason? Any sort of expert advise is welcomed. I will really appreciate that. Thanks.