Interesting noise. Seltos just turned 18K miles and have heard a similar sound.Hi everyone, I recently got my Seltos SX Turbo. I like the car a lot and everything is working fine. However since day 1 I noticed a weird noise coming from the engine. You can hear it from outside or inside, but inside is clearer. It sounds like some sort of buzzing/whirring noise. It is most audible when I mildly accelerate to low rpm. It seems to me it might be related to the turbo, like the turbo spooling up. But it feels way too loud to me. I had turbo cars and none of then made this noise. It never goes away, even at higher rpm, but then it gets covered by the engine noise. It goes away when from a certain speed, I take off my foot from the gas pedal, but it comes back for a couple of seconds when the car downshit because it is slowing down. The day I got the car, I also test drive another one from the dealer lot, and it made the same sound. So I feel it is not an actual problem, but some sort of design. It is a bit annoying as it makes me feel I am driving a toy. What is your experience?