F1 designers have gone aggressive with the bodywork and engine packaging of this year’s cars in the never-ending pursuit of lap time - and Mercedes appears to have found big gains in the sidepod area.
Speaking in a video released by the team, technical director James Allison says the world champions have found an impressive quarter of a second per lap by modifying the sidepods.
"The biggest [change we have made] is down here in the sidepod," said Allison. "We've done an awful lot of work down there to try to make that car really, really slender.
"If you compare it to [the 2017] car, you can just see the difference. You can see that the bodywork bulges out around about where the engine and exhaust pack is.
"On the new car this is a much, much more slender thing. It doesn't look like much of a difference but actually when you add it all up it is something like a quarter of second just there. It was actually a huge amount of work.
“A lot of hair got lost in that project, but the end result is something that is pretty to look at but also much more importantly is an awful lot quicker."