Taiwanese daredevil Ko Shou-liang jumped 50 metres over China's second-highest waterfall in a car yesterday - then announced he was quitting the stunt business. After the death-defying leap over the Yellow River's Hukou Waterfall, which has a drop of 30 metres, the 44-year-old said he was ending his 20-year career as a stuntman - keeping a promise to his wife. 'I don't want to do stunts anymore. I don't want my wife and family to keep worrying. It's just not worth it. I want to spend the rest of my life doing other things,' he said. A crowd of about 20,000 turned out to watch Ko - wearing a red driving suit - speed off a 260-metre-long ramp at one side of the waterfall and land safely on a cushioned ramp on the other side. After the stunt, Ko paid tribute to his wife, a devoted Buddhist whose prayers brought good luck, he said. Two earlier attempts were aborted because he was not happy with his approach to the takeoff ramp. Among the onlookers were Ko's show-business friends, Cantopop singers Alan Tam Wing-lun and Jacky Cheung Hok-yau and film director Eric Tsang Chi-wai. As champagne corks popped, Tsang said: 'I'm proud of him. It is the most dangerous stunt he has done in the last 20 years.' Movie superstar Jackie Chan sent Ko a flower basket to mark the occasion. Ko now wants to help build 50 schools for poor mainland children.