修改 BUICK COMMERCIAL CHASSIS Cab & Chassis (US)

示范	生產日期	動力方面，KWT	動力HP	卷立方厘米	建築類型
BUICK COMMERCIAL CHASSIS Cab & Chassis (US) 5.0	09.1990 - 12.1991	127	173	4998	Platform/Chassis
BUICK COMMERCIAL CHASSIS Cab & Chassis (US) 5.7	09.1991 - 03.1993	134	182	5735	Platform/Chassis