A taxi caught fire while being driven and burnt the driver slightly in Shanghai on June 19. A privately owned Passat car also caught fire while being driven on June 26, causing widespread congestion at the city's South-North Viaduct.

Zhang Xingliang, a salesman at a Shanghai car dealership, said insufficient car maintenance can contribute to the aging of auto parts and lead to spills of engine oil and brake fluid, sparking a fire.

"Electrical short-circuits may also ignite the car in other cases," he said, adding that's why it is important to have cars serviced every 5,000 kilometers and change the oil on a regular basis.

"Plastic parts or decorations inside the car may also melt and become a potential safety loophole as they expand with heat," Zhang added.

To avoid similar accidents, Ying Haifeng, who is in charge of vehicle management for one of Shanghai's oldest sightseeing bus operators Big Bus Tour, said two brand-new buses with modern safety protection system to prevent spontaneous combustion would be put into use by the end of the month.

"Unlike a fire extinguisher, the spherical-shaped prevention device is installed in the rear engine so that when the engine reaches a certain temperature, it will automatically work to prevent a potential fire," Ying said.

Questions:

1. What item has Yu Genling has warned people to not leave in a vehicle?

2. Zhou Meiliang is a spokesman for whom?

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