How is the soundproofing of VV6 doing?

VV6 soundproofing really good, to say that I am most satisfied with the place is VV6 soundproofing, sound effect is good, mute effect can be, the car soundproofing is done quite in place, the door also feels very thick, over the potholes in the road can not be heard what the noise, such as walking on the ground feeling, running 100 yards when the noise is not big, if not to look at the speedometer are broken a hundred, simply can not feel the speed of the fast.