Toto Wolff owns 10% of Williams F1 team 14 October, 2010 Toto Wolff Oct.14 (GMM) The minority share of the Williams team now owned by Austrian Christian ‘Toto’ Wolff is 10 per cent, it has emerged. The stake bought in 2009 by the motor racing enthusiast and investor, whose girlfriend is the Scottish DTM driver Susie Stoddart, was not disclosed at the time. But according to a report in London’s Evening Standard, based on company filings by the Oxfordshire based team, the figure is 10 per cent. The report said Wolff is believed to have paid about $16 million for the stake, which would value the British outfit at about US $160m. Sir Frank Williams’ stake has therefore dropped from 70 to 63 per cent, and Patrick Head’s from 30 to 27 per cent. Wolff, 38, also owns shares in Aces Management, the driver management firm involving Didier Coton and Mika Hakkinen, as well as the F3 engine supplier HWA.