I’ve had my 2020 SE Cross Sport 4Motion V6 for about a month now. It has 18k miles and still on the stock tires with plenty of tread life left. I noticed an issue when I got caught in stop and go traffic the other day. When accelerating lightly (maybe 10-15% throttle) I get a wobble/vibration that I can feel in my feet only between 15-25mph. Any faster or slower and I do not feel it. Smooth at highway speeds. I also do not feel it in the steering wheel, just the chassis. Any idea what this could be? My initial thought was a tire balance issue and hitting a resonant frequency or something?