New crash standards are a part of the reason why, but auto manufacturers are marketing it as sound-dampening, and it's catching on fast.
Lokuya emaceleni nakagijima kwatiwa kutsi yindlela yawo yekuvikela kubanjwa kepha kucatjangwa kutsi lemitfunti leyentiwa ngemalambu etimoto atfusa lamagundvwane aze awente atshintje indlela.