Although Gerard Lopez has hit out at Renault for focusing solely on Red Bull in 2014, he admits the engine wasn't Lotus' only problem... read more »

Renault have confirmed they are working with engine expert Mario Illien to fast-track progress on their V6-Hybrid engine for the 2015 and 2016 seasons. Illien played a key role... read more »

Renault are hoping their chances of closing the gap to Mercedes will be boosted by new consultant Mario Illien... read more »

Renault believes that the input of engine guru Mario Illien could be key to it fast-tracking its bid to close on Mercedes in Formula 1 read more »

Renault has urged caution over Formula 1's push towards 1000bhp engines, amid fears that costs could rise dramatically read more »

Red Bull boss Christian Horner insists the problems Renault faced in Jerez Formula 1 testing last week are nowhere near the severity of its 2014 troubles read more »

Whilst Ferrari and Sauber may have topped the times during the opening pre-season test in Jerez last week, speed trap data shows they might not have closed the gap to Mercedes... read more »

Renault insists their "performance level is where they expected" despite several reliability problems in the first test in Jerez... read more »

Renault says that they understand the problems which primarily affected Red Bull during the first pre-season test at Jerez last week and have not suffered from any setbacks. read more »

Renault are far more confident of a successful 2015 season following a successful Jerez test in which the engine manufacturer hit "almost all the objectives" they set... read more »

Renault says it will focus more on race performance at the next F1 test in Barcelona read more »

Renault says fixes for its Jerez reliability worries having been put in place - which means that the next Formula 1 test in Barcelona will show off its true potential. read more »

Renault was reassured by its performance at the opening test of 2015 in Jerez, despite numerous issues delaying Red Bull's progress read more »

Jerez witnessed the track debut for the upgraded Renault power unit that will power Red Bull and Toro Rosso in 2015. read more »

Daniil Kvyat has faith that Red Bull engine partner Renault can make the step needed for the next Formula 1 test at Barcelona after frustrations at Jerez this week read more »

Daniil Kvyat is relaxed that Renault has a hold off the problems that hampered Red Bull's mileage during the first F1 pre-season test in Jerez. read more »

The first pre-season test is now over and Ferrari have emerged as a potential title challenger with Kimi Raikkonen topping the combined times, whilst Ferrari power locked out... read more »

As Red Bull suffer with reliability issues, Carlos Sainz racks up a substantial 136 laps on his second day in the Scuderia Toro Rosso. read more »

Renault has revealed that its Formula 1 testing efforts at Jerez have been hurt by reliability worries over what it calls a "stupid part" on its engine read more »

Red Bull Racing's Daniel Ricciardo says there is still much to be positive with despite a Renault F1 power unit issue limiting him to 46 laps. read more »

Daniel Ricciardo insists he expected Red Bull's first 2015 Formula 1 test to be compromised, after a Renault engine change disrupted his running at Jerez on Tuesday. read more »

Daniel Ricciardo says he has no concerns about Renault's readiness for the new season despite seeing Red Bull's third day of testing cut short by a power unit change read more »

The third day of pre-season testing in Jerez saw Sauber's Felipe Nasr at the top of the timesheets, while McLaren made limited progress with its new Honda-powered MP4-30... read more »

Red Bull has revealed its new Renault-powered RB11 in a 'testing livery' at Jerez. read more »

Despite being confident that Renault have closed the gap to Mercedes, Adrian Newey has warned that a title tilt may be a step too far for Red Bull Racing... read more »