Purchased a 2008 Focus SE for my girlfriend. Previous owner had owned the car since 20k miles. The car now has 110k on it. Car is beautiful and we really like it. The only problem we’ve encountered is obnoxiously loud cabin engine noise and vibration. Most noticeable: cold starts, idle, and slow speeds. When accelerating/decelerating at slow speeds the noise/vibration is also there. Dash panels actually vibrate. I press the panels with my finger and the noise stops. Obvious answer is motor mounts but my brother is a mechanic and he replaced all 3 mounts within 2 weeks of us owning the car. The noise and vibration is there even when the engine is jacked up with a 2x4 on the oil pan taking all weight off the mounts. He thinks it’s the harmonic balance?? The car runs and drives great. No CEL or warnings. A friend of my girlfriend actually owns one of these cars too and I sat in the passenger seat while he started the car and the same vibration/noise was there as well. He only has 60k miles. Is there a problem or are these cars just meant to be louder? I have a 2001 Civic with 230k miles and it’s night and day how much quieter it is compared to the Focus. So I’m asking if there is a problem or is this just the way these cars are? If there is a problem I would love some hints on where to go next to fix this.