修改 GREAT WALL TENGYI C30 Stufenheck

示范	生產日期	動力方面，KWT	動力HP	卷立方厘米	建築類型
GREAT WALL VOLEEX C30 Stufenheck 1.5	05.2010 - ...	77	105	1497	Saloon
GREAT WALL TENGYI C30 Stufenheck 1.5	05.2010 - ...	77	105	1497	Saloon
GREAT WALL VOLEEX C30 Stufenheck 1.5	05.2010 - ...	71	97	1497	Saloon
GREAT WALL TENGYI C30 Stufenheck 1.5	05.2010 - ...	71	97	1497	Saloon