Lella Lombardi
Lella Lombardi has the distinction of being the most successful female driver in Formula One. Lella is the only female driver in Formula One to have finished in the Top 6 of a World Championship race, thereby becoming the only female driver to have won any championship points. This was in the 1975 Spanish GP, and since the race was a shortened affair, only half points were given. Therefore, she only received 0.5 points instead of the usual 1 point she would have got if it were a normal race length.
She entered in as many as 17 races, starting her F1 career in 1974, thanks to a privately entered Brabham. But in 1975, she raced the entire season with F1 team March. Following that, she had an outing with Williams as well as RAM Racing. Of the 17 races she entered, she qualified for 12 of them, making her the female driver to compete in the most number of races.