What are flexi-wings and why do F1 teams want them?

Video footage of Red Bull’s rear wing tilting back at high speeds on the Barcelona straight at the previous grand prix courted the ire of Mercedes, with Lewis Hamilton quick to draw attention to the “bendy” wing on the RB16B.
And thus, the can of worms was opened; Ferrari and Alfa Romeo also admitted to introducing aeroelasticity into their rear wings, and it seems distinctly possible …Keep reading