Ferrari's Felipe Massa won the Turkish Grand Prix from pole position for the third year in a row on Sunday after safety fears slowed Lewis Hamilton's challenge.
McLaren's Lewis Hamilton said on Thursday that he missed winning and intended to clamber back on top of the podium in Turkey this weekend.
Valentino Rossi snapped his longest spell without a Moto GP win since his debut top-class season by winning the Chinese Grand Prix on Sunday.
McLaren's Finnish driver Heikki Kovalainen was taken to hospital on Sunday after being knocked unconscious in a heavy crash at the Spanish Grand Prix.
Triple world Formula One champion Jackie Stewart has called for FIA president Max Mosley to quit after the scandal that has focused attention on his private life.
Brazilian Felipe Massa led Ferrari to a one-two victory at the Bahrain Grand Prix on Sunday with teammate Kimi Raikkonen seizing the championship lead from McLaren's Lewis Hamilton.
Formula One could expand to 20 grands prix in future but that should be the upper limit, team bosses said at a motor sport business forum in Bahrain on Wednesday.
McLaren's Lewis Hamilton avoided the mayhem around him to open the Formula One season with a pole-to-flag victory in a crash-strewn Australian Grand Prix on Sunday.
Ferrari's world champion Kimi Raikkonen and McLaren's Lewis Hamilton renewed their rivalry at the top of the timesheets in practice for the season-opening Australian Grand Prix on Friday.
Struggling Super Aguri confirmed Japan's Takuma Sato and Britain's Anthony Davidson as their 2008 drivers on Tuesday after agreeing to a takeover of the Formula One team.
McLaren's Lewis Hamilton expects to have an easier time fighting for the Formula One title this season than in his extraordinary 2007 rookie year.
Fernando Alonso has fought for the Formula One championship three times in three years, winning the title twice before losing out by a single point in last season's final race.