Xinhua News Agency: An old Cadillac owned by American "stock god" Warren Buffett was auctioned for more than 122,000 US dollars, and the proceeds will be used for charity. This champagne-colored 2006 Cadillac DTS sedan has just over 32,000 kilometers on the road and has Buffett's signature on the dashboard. Previously, Buffett had auctioned off his 2001 Lincoln Town Car and donated more than $7,000 in proceeds to the same charity.