McLaren and Honda's reunion last year was a far cry from the success they enjoyed together a generation ago, as problems with both the chassis and power unit led to a horrific season, with neither pace nor reliability.
Amid the poor on track performances the pairing worked diligently behind the scenes to makes strides on both fronts. Launched on Sunday morning, the MP4-31 holds no surprises as the aero concept was tested throughout 2015, with more and more rake.
While the power unit was limited by the token system, the winter spend of up to 32 tokens would allow Honda to resize its turbo and MGU-H. It looks like the basics that were so wrong last year, within the unit pictured below, are now right.