My D-4D used to sound really loud during the break-in period. Now that it has gone over 20,000 kilometers, it's almost as quiet as a gasoline engine provided that I got some music playing in the background. Give it around 5000 kilometers or so and then forget about all the rattles and
enjoy the sound of the turbo whistle. 
The fortuner 3.0 got the best sounding turbo whistle amongst those I've heard.
Is it true na may recall ang yaris cross hev recently regarding sunroof issue? Lol.
China cars