See also:

Substantially reduced road and wind noise
Many improvements were made to structural rigidity and powertrain NVH performance to provide a quieter, more pleasant ride, including the reduction of high frequency booming noise sometimes heard ...

Driving dynamics - The evolution to a more sophisticated sporty ride
The development theme for the all-new Mazda 3's dynamic performance was "exhilarating driving." It refers to the satisfaction derived when a car acts in perfect concert with the driver's ...

Specifications
Engine Electrical System *1 ex factory NOTE: When cleaning the iridium plugs, do not use a wire brush. The fine particulate coating on the iridium alloy and platinum tips could be damaged. ...