See also:

Engine Exhaust (Carbon Monoxide)
WARNING: Do not drive your vehicle if you smell exhaust gas inside the vehicle: Engine exhaust gas is dangerous. This gas contains carbon monoxide (CO), which is colorless, odorless, and poisonou ...

Interior Design
The roadster spirit of the exterior is reflected in the cockpit. The facelift inherits the clean forms of the original third-generation model, and updates these with new materials, detailing and c ...

Under the Hood
The 2.0-liter four-cylinder in the Mazda3 i has variable valve timing and develops 148 horsepower (144 hp in PZEV form). The Mazda3 s uses a 2.3-liter four-cylinder that pumps out 156 hp. A five-s ...