LONDON - Female racing driver Susie Wolff has been appointed as the official test pilot for Williams, the Formula One team announced on Friday. Wolff, who was previously Williams’ development driver, succeeds Felipe Nasr, who will drive for Sauber in the 2015 season. “This is another step in the right direction for me,” said Wolff, who this year became the first woman to drive at a grand prix weekend for two decades by taking part in first practice in Britain and Germany. “I am delighted Williams are recognising my progression and hard work. Williams is at a very exciting stage in its history and we are moving into 2015 with fantastic momentum..” Should either Felipe Massa or Valtteri Bottas have to sit out a race for any reason, the Scot would be expected to deputise.