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As part of a number of new modifications, the Giulietta will include the Fiat Group's JTDM diesel engine as well as a new look.
The car has seen something of a facelift too, with a newly designed front grille, in addition to chrome-trimmed foglights and new alloy wheels.
According to the manufacturer, the new model will provide a quieter operation, as well as providing a reduction in particulate and nitrogen oxide emissions.
Furthermore, motorists will benefit from a new Uconnect multimedia system, which combines navigation. audio and telephone integration. The technology works in support of a 5 or 6.5inch touchscreen.
It is expected that the Alfa Romeo will hit the forecourts in October this year.
The MiTo MY2014 will also see a debut at the event, but cosmetic changes are more limited as opposed to what is occurring under the bonnet.
A new turbocharged 0.9-litre 2-cylinder TwinAir engine will feature, delivering 105 hp at 5,750 rpm and a peak torque of 120 Nm (88.5 lb-ft) at 1,750 rpm.
In terms of aesthetics, only small changes to the grille are really noticeable, while the front light clusters have also seen a new finish. However, on the inside, drivers will welcome four new upholstery options, as well as the Uconnect system.