See also:

Outside the United States
Government regulations in the United States require that automobiles meet specific emission regulations and safety standards. Therefore, vehicles built for use in the United States may differ fr ...

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 ...

Going & Stopping
The new Mazda6 is available with one of two engines, and both offer capable performance for what they are. The base engine is a 2.5-liter four-cylinder that produces 170 horsepower (a cleaner vers ...