Formula 1 teams have all been asked to devote time over the remainder of the season to running the device on track, so the FIA can gather as much feedback as possible from drivers about potential drawbacks.

In Belgium last weekend, Nico Rosberg, Daniel Ricciardo, Nico Hulkenberg and Carlos Sainz all tested it and said they were pretty happy that it did not hinder visibility – especially on a track with big elevation change like Spa-Francorchamps.

McLaren has now joined the testing programme, with Button set to evaluate it during opening free practice at Monza.

Red Bull's Max Verstappen and Force India's Sergio Perez will also be running the Halo – although it is unclear if they will do a single installation lap or more serious running like Rosberg did in Belgium.