Stands for ''Super Sport''. Very commonly used on General Motor's high performance models such as the Corvette, the Camaro, the Chevelle and the
Nova. They also use this abreviation on more standard
car such as the Impala, the Monte
Carlo and the Malibu. Also use on unique vehicule such as the El Camino and the SSR. The SS cars come usualy with a bigger motor, reinforced suspension and chassis, stronger brakes and unique decorations on the exterior and interior of the
car.