When McLaren launched its MCL60 before Formula 1's pre-season test, it painted a very downbeat assessment of what it had created.
Team boss Andrea Stella was open that the squad was "not entirely happy for what is the launch car" because it knew it had missed some core design ideas as it brought the package together.
"There's some areas in which we kind of realised a little late in development, some really strong directions," he said.
Those directions have emerged over the course of what has been an impressive resurgence for the squad, which secured a double podium finish at last weekend's Japanese Grand Prix.
Ahead of the race in Suzuka, and off the back of a major Singapore upgrade, Stella offered some fascinating insight into what the key areas of design change were.
Here is a rundown of what he explained.
Outwash front wing
Source: Autosport