Students look at their new school buses at a primary school in Nanjing, capital of East China's Jiangsu province, Feb 6, 2012. Altogether 100 new school buses for 32 primary schools in the city's Liuhe district will roll into operation. The bus, with the chassis extending out from the front of the vehicle over the wheels, is said to have the highest safety rating of all school buses in China. In December last year, a school bus overturned and fell into a ditch in Jiangsu province, killing 15. Another school bus accident in the western Gansu province killed 21 people in November. [Photo/Xinhua]