Red Bull design guru Newey to quit over Horner controversy - reports

Newey, 65, has been with Red Bull since 2005 and has played a key role in all of the team's 13 world titles -- seven drivers and six constructors -- since 2010. However, he is believed to have become unsettled at the team ever since team principal Horner was accused of sexual harassment and inappropriate behaviour by a female employee. Horner was cleared of wrongdoing by an internal investigation carried out by Red Bull's parent company before the employee was then suspended. She is appealing that decision.