The decrease in fuel consumption will result from lightweight technologies, petrol engine upgrades and new diesel engines.
By developing new platforms, the Japanese car maker plans to reduce vehicles’ weight by 100kg or more from 2011 and is also aiming to have carbon neutral bioplastics ready for use in vehicles by 2013.
By 2015, Mazda will have renewed almost all its entire powertrain lineup.
Its Smart Idle Stop System will be introduced into one of its cars next year.
Mazda said it is the first system in the world to restart an engine from idle by injecting fuel directly into the cylinder and igniting it to force the piston down, enabling a fast and quiet restart as well as improving fuel economy by up to seven-to-eight per cent.