Mercedes took a risk in bringing its updated Formula 1 engine to the Italian Grand Prix before completing its reliability targets, admits the firm's head of motorsport... read more »

Mercedes has traced the cause of Nico Rosberg's reliability issue on Saturday to leak in the cooling system, which then contaminated the power unit itself. Rosberg had to... read more »

Red Bull's Daniel Ricciardo is surprised Renault is still having regular reliability issues now that it is well into its second year of developing its V6 turbo power unit.... read more »

Even though Mercedes dominated Friday practice running for the Italian Grand Prix Lewis Hamilton insisted that his upgraded power unit felt "the same" as before.... read more »

Yasuhisa Arai, Honda’s motorsport chief, believes that the Japanese car manufacturer’s Formula 1 engine is outperforming rival Renault by 25-horse power. Arai’s comments come... read more »

Jenson Button wants McLaren and Honda to make a push on getting more performance from the power unit, even if it means a slip in reliability read more »

Jenson Button says McLaren's current form has led him to revise his pre-season target of securing at least one victory in 2015, and now believes a podium is unlikely. The... read more »

Carlos Sainz Jr. says that Toro Rosso must improve its reliability if it is to stop missing out on points across the second half of 2015. Sainz has collected nine points so far... read more »

Honda chief officer of motorsport Yasuhisa Arai is confident that the manufacturer can make substantial progress across the remainder of 2015, with a new specification power... read more »

Renault is planning on spending the majority, if not all, of its 12 development tokens in one massive upgrade which it hopes will provide a big performance boost. The French... read more »

Fernando Alonso says that McLaren's MP4-30 is a 'beautifully balanced' chassis, despite the team sitting a lowly ninth in the championship at the halfway point... read more »

Honda will spend some of its remaining development tokens on a new spec of engine ahead of the next race at Spa-Francorchamps. Honda has struggled for performance and... read more »

Honda is confident their reliability woes are now in the past with the manufacturer confirming they will use some of their engine development tokens in Belgium... read more »

Fernando Alonso has suggested that McLaren's issues aren't chassis related, but entirely down to Honda's underpowered engine, after applauding the... read more »

With a "really good chassis" and two "high-skilled" drivers, Franz Tost says it is only reliability that is preventing Toro Rosso from grabbing P5... read more »

The Force India Formula 1 team's reliability and design integrity has not been compromised by its two failures at the Hungarian Grand Prix, says deputy team principal Bob... read more »

Carlos Sainz had more than one reason to be annoyed after the Hungarian Grand Prix, as another F1 points finish went begging. read more »

Renault says it is wary that progress needs to be made despite securing Red Bull securing its best result of 2015 at the Hungarian Grand Prix. Daniil Kvyat claimed a... read more »

Fernando Alonso described fifth position as a "little present" for McLaren after his best result of the season at the chaotic Hungarian Grand Prix. McLaren looked... read more »

Daniel Ricciardo feels the improvements made to the power unit by Renault have solved the reliability issues that have heavily affected the first half of the season for Red... read more »

Renault has conquered the reliability problem of its Formula 1 engine, according to Red Bull driver Daniel Ricciardo read more »

Renault will not bring performance updates to its power unit until the Russian Grand Prix, according to Red Bull team principal Christian Horner. A series of reliability issues... read more »

Toro Rosso Team Principal Franz Tost says that the outfit's "horrible" reliability record in 2015 is to blame for the squad's lack of points compared to its… read more »

McLaren will take advantage of its 'free' fifth engine at this weekend's Hungarian Grand Prix, the team has confirmed. The World Motor Sport Council recently... read more »

Eric Boullier says McLaren's recent spate of first-lap accidents have prevented the team from making the necessary progress with its upgrades. McLaren-Honda has struggled... read more »