Baku is the track where McL's 'Mini-DRS' drama started:

💡McLaren has a "Mini-DRS", which acts on top of the "Flexy wing":
- Wing flex: McL > Ferrari >> RedBull.
- McL has a never-seen-before lift of the upper plane leading edge: it's as if the DRS opens partially at high speed, providing a further advantage.

The effect is measurable: McL had the highest top speed when the DRS was inactive despite being slowest when the DRS was open (Data from quali).

Is this legal? 🤔
- The flexy wing is, as it passed the FIA's load tests. A wing that flexes are 'against the spirit of the rules', but until the load tests change to avoid that such a thing is perfectly ok.
- I'm not sure about the deformation of the DRS plane: I expect Ferrari to protest that, but the outcome is hard to predict.

Photo and idea: @brakeboosted; @multiviewer