What Are Flexi-Wings & Why Are They So Controversial In Formula 1?

Video footage of Red Bull’s rear wing tilting back at high speeds at the Barcelona grand prix courted the ire of Mercedes, with Lewis Hamilton quick to draw attention to the “bendy” wing on the RB16B. We take a look at what will happen to the flexi-wing, why Formula 1 teams want them and why they are discouraged under safety grounds.