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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 ...

Cargo
At 11.5 cubic feet, the sedan's trunk is rather small, but the hatchback ups it to 17.1 cu. ft. behind the backseat and 43.8 cu. ft. when it's folded down. There's a rigid cargo cover to keep the ...

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 ...