No one doubts about the fuel efficiency of Toyota Crown Hybrid. But however this car does not escape from the problem. Toyota is famous for making good in the quiet cars, like the Lexus models as well as upscale sedans other Totota. Toyota Crown also equipped with 2 speakers in each front door left and right, other than the subwoofer in the rear. Unlike mobile phones, in-car system is not only related to direct noise and disposal system, but also echo bouncing off the walls of the car's interior.