Nico Rosberg's form in the final three races of the 2015 Formula 1 season was easily explained away. Lewis Hamilton had taken his foot off the gas after winning the world championship and Rosberg no longer had the pressure of a title fight on his shoulders.
Less easily accounted for is how the German has carried that form into this season. Hamilton started on pole in the first two races but Rosberg delivered when it counted on Sunday afternoon.
He now has five wins on the bounce and a healthy 17-point lead. We're only two races in and there are still 19 to go, but his performance is significant.