sentences:  Only 500 units of this package incorporated into the Camaros were to be produced for the 2011 model year run, however, only 400 were actually ordered.The name Synergy was decided by Chevrolet to be not only known for the green color of the first run of special edition Camaros in 2010 but to be a yearly special edition Camaro offered by Chevrolet for their determination to release at least two special edition Camaros every year.So the word "Series" was added to reflect the editions as an annual special edition.