The India-born Sauber principal said the predicament of Marussia and Caterham showed the need for cost-cutting measures.
The 29-year-old has a 17-point lead over his rival Nico Rosberg, with three races still remaining.
A team spokesman said on Wednesday that the 43-year-old had tendered his resignation way back in March.
Lewis Hamilton continued his good run despite being driving on the brand new circuit of Sochi.
FIA on Saturday said that each and every life is important and they can’t afford to put them in jeopardy.
In 2012, tests were carried out using a forward roll hoop after other experiments with a jet fighter-style canopy.
Formula One supremo Bernie Ecclestone has shrugged off the critics and President Vladimir Putin.
Bianchi aquaplaned off the wet track with his car hitting the rear of a tractor deployed to remove Sutil’s car.
Jules Bianchi’s freak accident raises questions about the sport, but there are no easy answers.
Sky Sports reported from the Mie General hospital in Yokkaichi, that his family were expected to arrive shortly.
The race started behind the safety car as rain drenched the 5.8 km circuit but, conditions clearly too treacherous.
Novak Djokovic decimated Tomas Berdych 6-0 6-2 in the final. It was Djokovic’s fifth China Open title.
Hamilton takes big step towards world championship, but no champagne spray on podium, only silent prayers.
Marussia driver Jules Bianchi was taken to hospital following a crash during the race.
Rosberg finished second in a race that needed two starts behind the safety car and ended before the full distance.