Worse , ttac found that gm 's mild hybrid drive system , called " eassist , " added cost , weight , and complexity to the car while delivering few benefits .

更糟糕的是，这个网站发现，通用的“eAssist”轻度混合动力系统增加了车子的成本、重量和复杂性，却没给消费者带来多少好处。