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Under the Hood
The Mazda3 i comes standard with a 148-horsepower, 2.0-liter four-cylinder engine that can team with a five-speed manual or five-speed automatic transmission. Mazda3 s models use a 167-hp, 2.5-lit ...

Catalyst that uses single nanotechnology
The MZR 2.0-litre petrol engine underfloor catalyst is the world's first vehicle catalyst to be constructed with single nanotechnology, which controls even finer materials structures than nanotech ...

Under the Hood
The normally aspirated (non-turbo) 2.5-liter four-cylinder engine is now available on "i" Touring models, and it comes with a five-speed automatic transmission and front-wheel drive. The ...