An electric bus manufactured by China's BYD is seen in Rio de Janeiro, March 28, 2014. A month-long exhibition for BYD's electric bus was inaugurated here on Friday. (Xinhua/Xu Zijian)
A man takes photos of the mechanical part of an exhibited electric bus manufactured by China's BYD in Rio de Janeiro, March 28, 2014. A month-long exhibition for BYD's electric bus was inaugurated here on Friday. (Xinhua/Xu Zijian)
The renowned Sugar Loaf Mountain is reflected on the window of an exhibited electric bus manufactured by China's BYD in Rio de Janeiro, March 28, 2014. A month-long exhibition for BYD's electric bus was inaugurated here on Friday. (Xinhua/Xu Zijian)
A man drives an electric bus manufactured by China's BYD during a test ride in Rio de Janeiro, March 28, 2014. A month-long exhibition for BYD's electric bus was inaugurated here on Friday. (Xinhua/Xu Zijian)
Visitors takes an electric bus manufactured by China's BYD during a test ride in Rio de Janeiro, March 28, 2014. A month-long exhibition for BYD's electric bus was inaugurated here on Friday. (Xinhua/Xu Zijian)
A woman steps off an exhibited electric bus manufactured by China's BYD in Rio de Janeiro, March 28, 2014. A month-long exhibition for BYD's electric bus was inaugurated here on Friday. (Xinhua/Xu Zijian)
Visitors takes an electric bus manufactured by China's BYD during a test ride in Rio de Janeiro, March 28, 2014. A month-long exhibition for BYD's electric bus was inaugurated here on Friday. (Xinhua/Xu Zijian)