environment hero

The Mazda3 Fastback offers great fuel consumption & superior environmental performance


This efficient car combines an exhilarating driving experience and outstanding fuel economy, with low CO2 emissions from just 104 g/km1. This impressive environmental performance is achieved with our pioneering technologies including i-stop, i-stop and our advanced SKYACTIV Technology.


CO 2 emissions 1

74.3 mpg

Combined Fuel Consumption 1

i-stop technology Superior fuel economy from an efficient car with no compromise

Inspired by cyclists, our i-stop system positions the pistons perfectly to quickly restart the engine.

i-stop improves your car’s environmental performance by switching off your engine when you’re idling in traffic. You’ll hardly notice this happen because i-stop restarts your engine more quickly and smoothly than most stop-start systems. So your engine’s ready to go as soon as you want it. i-stop is standard across the Mazda3 range.


The winner of several technology awards, this is the world’s only start-stop system that uses combustion energy to restart. Just one more way that we defy convention.

Features Explore the detail beneath the surface

Model shown may not be to UK specification. Colours and some exterior and/or interior elements may differ on screen from the actual model. ¹Mazda3 105ps Fastback Diesel (6-speed manual).

The MPG figures quoted are sourced from official EU-regulated test results obtained through laboratory testing. These are provided for comparability purposes only and may not reflect your actual driving results.