Mercedes-Benz ≫ CLSMercedes-Benz CLS (2018, C257, third generation) photosby Joshua ThompsonThe 2018 Mercedes-Benz CLS sedan has 3-liter inline 6-cylinder engines: two diesel (CLS350d, CLS400d), and one mild hybrid gas (CLS450). ◄ PrevNext ►Credit: Mercedes-Benz 2018 Mercedes-Benz CLS - interior, dashboard Tags:c257clsmercedes-benzthird generation