Ferrari could still have plenty of performance in hand, with Williams believing the power unit manufacturers will have been running “some way off optimum” at the first test.

Felipe Massa and Valtteri Bottas were keen to point out that Williams was not running the Mercedes power unit anywhere near its full potential during testing at Jerez, with Ferrari-powered dominance of the headline times being attributed to Mercedes hiding its performance.

Lewis Hamilton backed up that theory by claiming Ferrari was doing more attacking runs than its rivals, but Williams chief test and support engineer Rod Nelson expects all of the engine manufacturers to have kept plenty in reserve.

Asked how far off maximum performance Mercedes was running, Nelson replied: “I can’t give you an absolute number, I don’t know the absolute number is the honest truth.

“I’m sure it’s true to say that all four of the manufacturers are some way off optimum [at Jerez]. We’re not running quali-style maps and modes and all the rest of it, and I wouldn’t believe that anyone is.

“Renault has got essentially a very highly-developed version of last year’s engine. Mercedes has obviously been doing work, Honda’s brand new and Ferrari I’m sure has done quite a bit of work. So we’ll all be some distance off where we hope to be in Melbourne.”

Click here for the full gallery of the first photos of the SF15-T

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

Perez reveals how he became Force India's unlikely saviour

Sergio Perez has revisited one of the most extraordinary off-track stories of his Formula 1…

11 hours ago

FIA expands straight-line mode at Spa – as Alonso sounds warning

Formula 1’s return to Spa-Francorchamps this weekend will introduce a striking new element to the…

12 hours ago

McLaren set for Mercedes engine upgrade at Spa and rear-wing trial

McLaren will arrive at the Belgian Grand Prix with a fresh opportunity to reset its…

14 hours ago

Michael bows to Mika on British GP podium

On this day in 2001 at the British GP at Silverstone, Formula 1 fans were…

15 hours ago

Bearman moved to tears after driving Senna’s iconic Lotus

The Silverstone pitlane has borne witness to countless moments of motorsport history, but recently, it…

16 hours ago

Steiner: Time for McLaren to ‘grow up’ and build its own engine

McLaren’s search for answers in Formula 1 has once again turned the spotlight onto its…

18 hours ago