New asymetric sidepod inlets on McLaren
McLaren have found the best way possible to reduce drag; just cover up the sidepod inlets. Much of the drag is causes by these inlets, which is why teams try to make them as small as possible, just big enough for cooling. McLaren have either found a very efficient way to provide engine cooling or have decreased the engine's need to be cooled down as the lower half of the air inlet of the right sidepod has been covered up. Previously the change was first seen at the most recent Silverstone test and was eventually raced there too. Several observers did however not expect to see it back in normal temperature conditions. At Hockenheim, possibly thanks to the rather low ambient temperatures, the team again using in on both MP-23's.
Pretty sure it was raced in Silverstone.