Red Bull Team Boss Christian Horner says he is concerned by Renault's focus on reliability on their engines ahead of the 2018 Formula 1 season. read more »

Renault: Focus on reliability will aid performance read more »

Brendon Hartley says Toro Rosso's new Honda-powered Formula 1 car enjoyed a "perfect day" of reliability on its full testing debut at Barcelona read more »

Brendon Hartley has revealed Honda wants ‘no reliability issues’ over the first part of the 2018 F1 season and has given a glowing report. read more »

Toro Rosso's Brendon Hartley hails 'perfect' Honda reliability on opening F1 test day read more »

Red Bull boss Christian Horner says he is concerned Formula 1 engine supplier Renault will start the 2018 season in a compromised specification for reliability read more »

Honda will focus on reliability over performance with its first race specification engine for the 2018 Formula 1 season, Autosport has learned read more »

Gene Haas has said he has no reliability concerns ahead of the 2018 season read more »

Renault and their customers, Red Bull and McLaren, won't be able to use their power units to their full capacity at the start of this season with Renault opting to focus... read more »

Renault will not unleash the full potential of its Formula 1 engine for the 2018 season's early grands prix because it wants to take a zero risk approach to reliability read more »

American outfit looking for reliability and consistency as it reveals test plans. read more »

Renault believes that only a "fresh approach" will produce the reliability steps it needs to move forward in the 2018 Formula 1 season read more »

Gene Haas says he has no concerns about reliability ahead of the reduction to three engines for the longer 2018 F1 season. read more »

McLaren chiefs have revealed they're confident that new engine supplier Renault will provide an engine that is both powerful and reliable to compete with. read more »

Toro Rosso's technical director believes that the reliability of the Honda power unit can make or break their season. read more »

There are encouraging signs coming from Ferrari's Maranello base, with Autosport reporting that reliability targets have been met with their 2018 engine. read more »

Ferrari's 2018 Formula 1 engine has hit its reliability targets on the dyno, while encouraging results from work on a new cylinder head concept have also been reported read more »

Having completed every lap of the 2017 season, Lewis Hamilton says that level of reliability needs to be Mercedes' goal for the 2018 campaign. read more »

After finishing every race in 2017, Lewis Hamilton feels it will be more difficult to achieve that feat in 2018, but he has faith in Mercedes that they can pull it off. read more »

Renault will tick, tick and tick again any project that impact the reliability of their power unit after adopting a "more draconian" approaching to signing off. read more »

Zak Brown insists McLaren is confident heading into the 2018 season despite their new engine suppliers, Renault, having multiple engine-related issues during 2017. read more »

Although Renault had a torrid time in the latter half of last season with the reliability of their power units, McLaren are confident they've taken measures to resolve it. read more »

While he admits reliability remains a concern, Zak Brown has no doubts about Renault engine's pace. read more »

Pierre Gasly: Pre-season reliability crucial for STR-Honda F1 hopes read more »

Renault will focus on strict quality control of parts for its 2018 Formula 1 engine, as it bids to fix the unreliability that blighted its '17 season read more »