Renault has confirmed that its latest F1 development engine will not now make its debut until the Brazilian Grand Prix at the earliest, ending speculation as to whether Red... read more »

Red Bull team principal Christian Horner has confirmed that the introduction of the upgraded Renault engine has been pushed back due to reliability concerns. The French... read more »

Red Bull is not planning to run Renault's updated power unit before the Brazilian Grand Prix after deciding the 0.2s performance gain it is not worth taking the associated... read more »

Renault used 11 of its 12 Formula 1 engine development tokens for the upgrade that is now set to wait another two grands prix before hitting the track read more »

Red Bull is not ruling out any options for an engine supply deal next year after the latest round of speculation linked the team to Honda for 2016. Red Bull's decision... read more »

Renault is set to wait until the Brazilian Grand Prix before running its updated Formula 1 engine with Red Bull, Autosport understands read more »

Carlos Sainz Jr does not believe Scuderia Toro Rosso will use the upgraded Renault engines in 2015, believing the performance gain will probably not warrant the penalties it... read more »

Daniel Ricciardo doubts Renault's upgraded power unit has improved enough to justify Red Bull taking the penalties that would come with it at this weekend's United... read more »

Daniel Ricciardo remains to be convinced that there is any point in running the uprated version of Renault's F1 V6 at this weekend's US Grand Prix in Austin. read more »

Daniel Ricciardo admits his team is unlikely to use Renault's updated engine this weekend. read more »

Daniel Ricciardo says Red Bull is unlikely to use the upgraded Renault power unit available to the squad at this weekend's United States Grand Prix. Renault has brought... read more »

Daniel Ricciardo has indicated that Red Bull won't run Renault's new engines at the US GP this weekend. read more »

Red Bull is unlikely to use the upgrade engine supplier Renault has brought to the United States Grand Prix, according to driver Daniel Ricciardo. Renault… read more »

Daniel Ricciardo says Red Bull is unlikely to use Renault's new-spec Formula 1 engine for this weekend's United States Grand Prix as it is "probably not worth... read more »

Red Bull and Toro Rosso will have the option of taking an upgraded Renault power unit for the United States Grand Prix. Renault has confirmed it has improved elements of the... read more »

Renault will have an upgraded power unit at COTA this weekend, but will the teams want to use it? read more »

The updates to Renault's Formula 1 power unit for the United States Grand Prix are aimed at power rather than drivability or reliability read more »

Renault has set their sights on a "clean weekend" in Austin, saying they have no concerns over the reliability of their new spec engine... read more »

Red Bull and Toro Rosso will have an upgraded Renault engine available for this weekend's United States Grand Prix. read more »

Renault says that it will make its upgraded power unit available at the United States Grand Prix, though it has not yet been decided whether Red Bull and Toro Rosso will use... read more »

Renault will deliver upgraded engines for this weekend's US GP - but it remains to be seen whether customer teams Red Bull and Toro Rosso elect to use the new units. read more »

Renault will have its new specification of power unit available to its customer teams, Red Bull and Toro Rosso, at this weekend's United States Grand Prix… read more »

Renault says it will work in full consultation with Red Bull and Toro Rosso on whether either team opts for the updated power unit in Austin read more »

Renault will bring an upgraded engine to the Circuit of the Americas this weekend after using eleven of its twelve available tokens, but is unsure whether Red Bull or Toro... read more »

Renault to make available upgraded engine in Austin read more »