Red Bull-Renault relationship "is going well" - Horner

Red Bull team principal Christian Horner is not worried about Renault's reliability woes ahead of the 2017 season. The power unit seems to produce more power than it's predecessor in 2016, but there are fears that reliability issues could hamper Renault engine runners.

However, Horner thinks that the issues are quick fixes, and should be ironed out very soon: "Renault has taken a big step forward with its 2017 power unit. Everything that was promised has been delivered.

"There are a few small reliability issues that need to be addressed now, but there are no deeper issues, just simple things," he told the French magazine Auto Hebdo.

While the relationship between Red Bull and Renault has ben rocky during the last couple of years, Horner thinks that they are back on track, giving credit to Renault's Remi Taffin.

"Our relationship is going well. It seems that under Remi's leadership, Renault has recovered the desire to return to the competitive position it had."

Renault-powered Toro Rosso driver Daniil Kvyat is also expecting a good season with his French engine.

"Renault is known for its conservative beginnings, so they have to be given a little time because there has been a considerable improvement," the Russian told Spain's El Mundo Deportivo.

Fergal Walsh