Hawtai B11, the first self-developed medium/premiumcar of Hawtai Motor, is a low-carbon B+ vehicle developed with advanced and intelligent technologies. This high-quality car leading domestic cars in several aspects: the first domestic medium/premiumcar equipped with the clean diesel engine; the first car equipped with the 2.0L diesel engine to provide a power per liter of 55.25KW; the first domestic environment-friendly diesel car that meets the Euro IV emission standard and can be upgraded to meet the Euro V emission standard; and the first domestic car equipped with the Intel in-vehicle information and entertainment system. Compared with direct-injection gasoline engine cars of the segment, the 2.0 TECV diesel engine of Hawtai B11 reduces carbon dioxide emissions by 25 percent, increases power output by more than 50 percent, and lowers fuel consumption by about 30 percent.