PARIS - Scottish racing driver Susie Wolff is to retire from her role as a Formula One practice and test driver at the end of this season, her Williams team said on Wednesday. The 32-year-old, who joined Williams in 2012 and who is married to Mercedes boss Toto Wolff, was the first woman in over two decades to take part in a Formula One race weekend. She participated at lasat year's British Grand Prix, took part in practice for the German Grand Prix as well as sessions in Spain this season and again at Silverstone. Her hopes of becoming the first woman to actually start a Formula One race since Italian Lella Lombardi in 1976, were shattered when German driver Adrian Sutil joined Williams after Valtteri Bottas sustained an injury in qualifying for the 2015 Australian Grand Prix.