I've had my 2023 F-Sport since April. With and without the engine sound function on, I am noticing some faint engine vibration sounds when lightly accelerating. It usually comes on after shifting from 2 to 3 or from 3 to 4. Right after the upshift, there's a faint vibration noise coming from the engine that lasts for a few seconds. It somewhat sounds like the fake generated sounds from the noise generator, but not an organized sound... just an on and then off vibration tone. Noticing it getting a little more consistent as time goes on. Also more common when the engine is cold and/or going up hills and there is some lagging. But it can also happen on flat surfaces. Only when mildly accelerating.

So I guess I'm wondering if this is a normal byproduct of the sound generator? Like it's just getting a little confused after the upshifts while the engine lags a bit under mild acceleration? Or could there be something totally unrelated to the sound generator? Like I mentioned above, it does it whether I have the system switched on or off.