SCOTTISH racing driver Susie Wolff has achieved another milestone in her bid to become the first female Formula 1 driver in more than 20 years.

Wolff, who was born in Oban, set the ninth-fastest time in her first full test for Williams at the final day of the young driver test at Silverstone yesterday.

The 30-year-old, who is married to team boss Toto Wolff, is a development driver and has previously carried out familiarisation and aerodynamic tests.

But yesterday's run was her first time behind the wheel in a full racetrack test. Wolff said: "It was fantastic today. The team did a great job getting me through the day, talking me through everything step by step.

"In hindsight it would have been good to run the new tyres later in the day after I'd had more time in the car as I don't think I got the best out of the medium tyres.

"Physically it wasn't easy, but it was what I was expecting. I was well prepared so it was completely manageable. My only problem was my seat as I was moving around a little.

"Doing the pit-stops this afternoon was beneficial as there is a lot to think about coming into the stops. It was a fantastic experience."

Her performance comes months after Sir Stirling Moss said women didn't have the mental aptitude for Formula 1 racing.

The three-day test ended with no repeat of the Pirelli tyre failures which had marred the British Grand Prix less than three weeks ago.

The combination of 2012 construction and 2013 rubber compounds coped with the Northamptonshire track and are set to be used from the Hungarian Grand Prix onwards.