General Motors USA has unveiled as slightly facelifted version of the Beat (Spark to the rest of the world) during the Centennial Anniversary Celebrations in Detroit.  The car has a new larger honey comb grille with differently shaped bumpers at the front and back and a larger Chevy bow tie.  It also has new design ORVMs and alloy wheels.  The car also has modified headlamps and rear brake lamps apart from new fog lamps.  The company has also said that it has modified the interiors a little as well.  Apart from this GM also has said that it will be unveiling a new family of engines for the whole world with displacements from 1.0 litre to 1.4 litres.  These engines are both diesel and petrol and some will feature turbo charging.