Video: How can the halo's look be improved?
Formula 1 is committed to introducing the halo cockpit protection device in 2018, but its appearance is likely to undergo some changes before then.
So far, teams have been testing prototype designs of the device, usually unpainted, and it has proved unpopular with fans.
But with a new, narrower version already appearing in last week's post-Hungarian Grand Prix test, and talk of aerodynamic modifications being possible, how should we expect the halo to look when the 2018 season kicks off in Australia next March?
In this clip from Motorsport.tv's weekly programme The Flying Lap, Peter Windsor and Craig Scarborough take a closer look.