David Coulthard and Red Bull topped the times in the final day of testing at Barcelona on Wednesday, and it is becoming ever more difficult to judge where the 2007 form book stands. BMW, McLaren, Toyota, Renault and Ferrari have all looked good at various times, and even team insiders admit that the situation is far from clear.
So far, though, we haven't seen too much from Honda, the team that has in the past won the 'winter World Championship'.
Like most of its rivals, the team has been through the inevitable problems that come with a new car - at one point on Tuesday afternoon the machines of Jenson Button and Rubens Barrichello were out of commission with engine related dramas - and that has not helped. But there's still a long way to go, and Ferrari's overnight switch from mechanical mayhem to pacesetters in Barcelona shows that things change quickly.