The new Formula One season is now just two weeks away but it is fair to suggest there are certainly more questions than answers surrounding the 2010 campaign even at this late stage.
The obvious focus of attention is how will Michael Schumacher fare on his return to competitive action?
According to the sportsbooks, the German legend is third in the online betting to be crowned world champion on his return.
Will Michael Schumacher win the drivers' title this season? - Latest Formula One Betting
However, it can't be forgotten that the now 41-year-old hasn't experienced full race conditions behind the wheel of a Formula One car for three and a half years.
In a world where failure to evolve is fatal, the Formula One car is a very different beast today that the one the seven-time world champion walked away from in Brazil in 2006.
It may take Schumacher time to get to grips with his new Mercedes GP car and that could effectively rule him out of the title running.
The other major question hanging over the sport ahead of the start of the season is how many teams will line up on the grid for the first race in Bahrain?
Following the departures of Japanese manufacturers Honda and Toyota in successive seasons, the first grid of the 2010 campaign could have an unfamiliar look to it.
The 2009 grid has swelled from ten teams to 12 with the new faces being Lotus, Virgin Racing, US F1 and Campos.
Of the new quartet there is a very real possibility that US F1 may not actually make the first race in the Middle East as they reportedly remain beset by financial difficulties.
That could open the door for BMW Sauber to return to Formula One after they were saved from extinction at the end of the 2009 season.
Serbian-backed team Stefan Grand Prix are also lobbying for inclusion even at this late stage in what promises to be an interested next two weeks.
The other major unknowns as we head into a new season are how will reigning world champion Jenson Button and Lewis Hamilton get on as new team-mates at McLaren?
Meanwhile, will Fernando Alonso rediscover the form which took him to two world titles after making the high-profile move to Ferrari during the off-season?
And finally, what effect will the new points scoring system of 25 for a winner (18 for second, 15 for third and so on) have on the new season?