See also:

Emission Control System
Your vehicle is equipped with an emission control system (the catalytic converter is part of this system) that enables your vehicle to comply with existing exhaust emissions requirements. WARNING ...

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 ...

Going & Stopping
All Mazda5s have a 2.3-liter four-cylinder engine that makes 153 horsepower and 148 pounds-feet of torque. It's a smooth-revving unit that's strong enough for its purposes, but it doesn't have a w ...