I'm totally fine with the noise isolation level of this car. My 2012 Focuses were a bit quieter, but noise insulation is heavy. Very heavy. Besides, I prefer the greater level of driving involvement that comes with a bit more sound. By the time I've put on intake, cat-back, etc., the car's a whole lot louder, anyway. My supercharged, water/methanol-injected 2001 Focus ZX3 was SERIOUSLY loud!