Fiat has launched new Mild Hybrid versions of its 500 and Panda city cars together as it takes action to cut emissions across its range. Both see their basic 1.2-litre engines replaced by an all-new electrified 1.0-litre unit that has been engineered with greater efficiency in mind.

The new engine is a naturally aspirated three-cylinder that’s paired with a 12-volt belt-integrated starter generator and an 11Ah battery. The former – essentially an uprated starter motor – is mounted directly to the engine and is used to provide a fast start/stop mechanism, as well as some light assistance under acceleration.