The sound symposer or road noise? The sound symposer makes it sound louder in the cabin for the people that like the hear the sound of the engine as they accelerate. I was worried it was going to be really loud, but it is just right to me. I don't like it really loud. It's all in the eye of the beholder though, I can't tell you if it's too loud for you. Without the sound symposer I think the cabin would actually be fairly quiet. The road noise isn't bad for being an economy car with low profile tires. It's a lot quieter than my current car. That's again in the eye of the beholder, depends on what you are used to in the way of road noise.