Leading F1 bosses believe Sebastian Vettel and Red Bull are well-placed to defend their titles in 2011.
"The favourite is always the reigning champion, so it's Sebastian Vettel and Red Bull," said Mercedes' Norbert Haug.
Toro Rosso boss Franz Tost agrees: "They (Vettel and Red Bull) have shown very good performance in all the tests."
And Sir Frank Williams said: "Red Bull and Ferrari will lead the field once again."
Agreed HRT's Colin Kolles: "Red Bull have the strongest package."
"My gut feeling about the favourite is Vettel," said Peter Sauber.
New manager for Lewis Hamilton: Simon Fuller is taking the job over from dad Anthony Hamilton. Lewis is hoping to get his off-track business sorted out more efficiently, which will leave him free to concentrate on winning races. But technical problems, few laps posted and too little pace hampered McLaren in testing. Can Lewis Hamilton and Jenson Button turn the situation round?
And there are Michael Schumacher and Mercedes GP. With a total of 91 Grand Prix victories, Schumacher has won two more races than all the other 23 drivers put together. Can he maintain or even improve on this record during the 2011 season?