Christian Horner has described the Renault power unit as "undriveable" after a disappointing Australian Grand Prix.

Daniel Ricciardo was limited to sixth place in the opening race of the season, lost a number of places at the start as numerous cars accelerated past the Red Bull despite a solid launch. Having already criticised Renault this weekend, Horner highlights the run to the first corner as proof of how bad the power unit is.

"It’s been a tough weekend and a very tough weekend for Renault," Horner said. "The engine is quite undriveable and you can see and hear that from the comments that the drivers are making. The clear evidence was at the start when Daniel got a pretty reasonable start before drivability came in and you can see the holes that are in the power delivery. A lot to be done."

Horner was even willing to quote figures to highlight the deficit Renault is facing.

"We’re probably 100bhp down on Mercedes at the moment. I think [Ricciardo] got everything out of the car."

And Horner says Renault needs to urgently react to its current approach, saying the engine manufacturer is "in a bit of a mess" at this stage.

"After this weekend it’s important that we regroup with Renault and try to offer support where we can because it’s obviously in a bit of a mess at the moment. We need to understand things quickly. Across the four cars we have had two engine failures - one within five laps – and a whole bunch of reliability problems. It’s not the start Renault can afford to have."

Click here for the full gallery from the Australian Grand Prix

Keep up to date with all the F1 news via Facebook and Twitter

Andrew Lewin

Andrew first became a fan of Formula 1 during the time when Michael Schumacher and Damon Hill were stepping into the limelight after the era of Alain Prost, Nigel Mansell and Aryton Senna. He's been addicted ever since, and has been writing about the sport now for nearly a quarter of a century for a number of online news sites. He's also written professionally about GP2 (now Formula 2), GP3, IndyCar, World Rally Championship, MotoGP and NASCAR. In his other professional life, Andrew is a freelance writer, social media consultant, web developer/programmer, and digital specialist in the fields of accessibility, usability, IA, online communities and public sector procurement. He worked for many years in magazine production at Bauer Media, and for over a decade he was part of the digital media team at the UK government's communications department. Born and raised in Essex, Andrew currently lives and works in south-west London.

Recent Posts

Las Vegas GP: Thursday's action in pictures

The opening day of running at the Las Vegas GP was a smooth but chilly…

25 mins ago

Williams' headaches persist into Vegas practice

Williams is continuing to fight uphill battles this weekend in Las Vegas as a knock-on…

2 hours ago

Ferrari's Sainz 'not satisfied with where we are' in Vegas

It was a solid start to the Las Vegas weekend for Ferrari with Carlos Sainz…

3 hours ago

Norris labels McLaren long-run pace ‘shocking’ in chilly Vegas

Lando Norris didn’t hold back in his assessment of McLaren’s performance on the opening day…

4 hours ago

Hamilton delighted with ‘consistently strong day’ in Vegas

Lewis Hamilton was particularly happy with his opening day of running at the Las Vegas…

5 hours ago

Verstappen stuck with 'draggy' rear wing for Vegas

Red Bull fears that its prospects for this weekend's Las Vegas Grand Prix - which…

6 hours ago