Britain's Susie Wolff, the first woman driver in 22 years to take part in a Formula One grand prix weekend, announced her retirement from motorsport at the end of the year.
Swiss racer Simona De Silvestro's hopes of becoming the first woman since 1976 to race in Formula One have suffered a setback with the Sauber team ending a testing deal due to her lack of funds.
Susie Wolff made her full test debut with former champions Williams on Friday, the biggest step by a woman driver in Formula One for more than 20 years, with race regulars paying her compliments.
Formula One supremo Bernie Ecclestone has proposed a controversial world championship for women drivers as part of Grand Prix weekends.
No woman has competed in Formula One since 1976 but organisers of the 'W Series' hope to provide a platform for them to develop skills before taking on the men further up the motorsport ladder. The idea of an all-female series is not new but has been controversial in the past, with top women racers adamant they want to compete against the men rather than be separated.