As the top three drivers waited in the holding room before the victory ceremony yesterday, Sebastian Vettel and Nico Rosberg chatted away in their native German.
Lewis Hamilton, who had just won the Malaysian Grand Prix minutes earlier, calmly sat in a corner, alone, his feelings only betrayed by a huge smile.
Later, at the Mercedes garage, there was champagne all around.
But, while crew members sang and cheered, Hamilton (left) stood calm, only smiling, as if something was missing.
The 29-year-old Briton had stormed home at Sepang to earn his 23rd Grand Prix win, his first triumph in Malaysia, and his first Formula 1 victory since Hungary last June.
Mercedes teammate Rosberg came in second, ahead of Red Bull's world champion Vettel, handing the German marque their first one-two finish since the Italian Grand Prix of 1955.
On a weekend where he was a clear favourite, Hamilton delivered in dominating fashion - but something was not quite right with the 2008 world champion.