As well as protecting drivers from flying objects, the Halo could also be used to differentiate different drivers and the leader of the championship when it is introduced to Formula One next year.
The decision to implement Halo on F1 cars in 2018 has been massively controversial and represents one of the most significant regulation changes in the history of the series, which has always featured fully exposed cockpits. Much of the criticism of the Halo centres around its look, with the prototypes tested so far often uninspiring in a plain black colour -- much different from how the final designs are expected to look.