McLaren CEO Zak Brown urges the FIA to investigate Red Bull Racing's alleged parc ferme rule violations to ensure fairness in Formula 1.

The ride adjustment device used by Red Bull explained as how it works to make a difference to the car's operation during qualifying and race.

McLaren CEO Zak Brown has urged the FIA to undertake a full investigation into the allegations surrounding Red Bull's potential breach of parc ferme regulations

For the latest news and breaking news visit: /sport/football. Stay up to date with all the big headlines, pictures, analysis, opinion and video on the stories that matter to you. Follow us on Twitter @‌dexpress_sport - the official Daily Express & http://Express.co.uk Twitter account - providing real news in real time.

Formula 1 champions Red Bull have made changes to their car after discussions with the governing FIA, the team said on Thursday.

McLaren CEO Zak Brown has called on the FIA to launch a “thorough investigation” into whether Red Bull did actually use its front bib adjuster under parc ferme conditions. Red Bull has found itself at the centre of intrigue over a device it has fitted under the heel support in its cockpit,

News comes after speculation over a device that Red Bull say exists on their cars but is not accessible; drivers deny any performance gain Formula One champions Red Bull have made changes to their car after discussions with FIA,

A new F1 controversy has emerged over the last 24 hours, with Red Bull accused of finding a trick to avoid the FIA’s ride height checks. Initially, the defending Champions denied claims of any exploit being used.

Red Bull Racing reportedly made sure it could not use the much-discussed 'trick' on the floor of the RB20 even before the Singapore Grand Prix following a warning from the FIA. The Austrian Formula 1 team was reportedly reminded after qualifying that its use was not allowed under the parc fermé rules.

Red Bull Racing has confirmed last-minute changes to their RB20 cars, driven by Max Verstappen and Sergio Perez, following concerns brought to the FIA ​​by riva