Red Bull boss Christian Horner criticises engine supplier Renault, saying they are six months behind rivals Mercedes. read more »

Christian Horner claims he first expressed concern at Renault's turbo project back in 2012. read more »

Red Bull team principal Christian Horner believes that engine supplier Renault is roughly six months behind the development curve compared to rivals Mercedes - and insists the... read more »

Christian Horner says Red Bull has options to move away from Renault power from the 2016 campaign if the French brand is unable to rectify the problems it has endured with its... read more »

Christian Horner says Renault is still six months behind rival Mercedes and that Red Bull already has options for 2016 if it continues to fall short of expectations read more »

Red Bull reckons its Formula 1 engine supplier Renault made a mistake by not focusing development of its 2014 power unit around one car read more »

Christian Horner says Red Bull has engine options for 2016 having been unhappy with the current performance of Renault read more »

"There needs to be change," demanded Christian Horner of Renault following a disastrous Austrian GP. Dietrich Mateschitz, on the other hand, wasn't quite as... read more »

Christian Horner talks about all things Silverstone and admits it won't be easy beating Mercedes at the British GP... read more »

Despite admitting that Mercedes F1 will take some beating at Silverstone, Red Bull's Christian Horner remains hopeful of success. read more »

Christian Horner is hoping that Red Bull will be able to give Mercedes "a bit of a run for their money" at the upcoming British Grand Prix, as the squad looks to... read more »

F1 fans in Austria waited 11 years for the sport to return to their county and they made sure they left a big impression on the major role players... read more »

Formula 1's race promoters should take on board lessons from how the Austrian Grand Prix made a big impact on its return to the calendar, reckons Red Bull boss Christian... read more »

Christian Horner says Red Bull owner Dietrich Mateschitz should be praised for making the Austrian Grand Prix a success read more »

Lotus has reportedly begun initial talks with Mercedes about using its power unit in 2015 as it looks to dump the struggling Renault unit. Whilst the Enstone team has scored... read more »

The 2014 F1 season has been a disaster for Sebastian Vettel so far, but Red Bull team principal Christian Horner insists "he's not letting his chin drop"... read more »

Christian Horner admits Sebastian Vettel is "frustrated" at poor reliability this year but is certain he will respond positively read more »

Christian Horner has backed Sebastian Vettel, amid suggestions the four time world champion could be losing the support of the Red Bull team. Typically-forthright 1997 world... read more »

Red Bull boss Christian Horner believes that the only way for effective cost control rules to work in Formula 1 is if the teams are not involved in agreeing them. read more »

The Austrian Grand Prix turned out to be an extremely difficult one for all Renault powered runners, brining to light more public frustration from Red Bull Racing's... read more »

Renault shares Christian Horner's belief that the current engine performance is not acceptable, according to Renault Sport F1's Rob White read more »

Renault insist they are "completely committed" to resolving their issues in the wake of a barrage of criticism from Red Bull's Christian Horner... read more »

As Sebastian Vettel suffered yet another engine related issue that put him out of a grand prix, Christian Horner has slated Renault... read more »

Christian Horner has openly criticised engine supplier Renault, citing the reliability and performance of its power units as "unacceptable" read more »

Christian Horner has slammed Renault for "unacceptable" reliability and performance after a disappointing Austrian Grand Prix read more »