Toro Rosso technical director James Key admits the team's new car has been compromised by the late confirmation of its power unit supply.

With Red Bull's relationship with Renault breaking down in 2015, there was uncertainty over the future of both teams due to numerous quit threats from owner Dietrich Mateschitz. Having moved to terminate its agreement with Renault, Red Bull was unable to secure an alternative engine supply and will now  run Tag-Heuer branded Renault power units in 2016.

Toro Rosso was able to reach an agreement with Ferrari for year-old engines, but Key says the uncertainty delayed its technical plans.

"Yes and no, because when you've got a tricky engine situation it's always a compromise," Key told Sky Sports when asked if the new car had been compromised.

"There is a compromise because you've really got to be optimising your car around what is an incredibly complicated installation of these power units. Back in March is when you're really getting to grips with what you're trying to do.

"So it does compromise from a technical viewpoint. In terms of what the team is doing, I don't think it makes the slightest bit of difference. You simply shuffle plans around accordingly."

And while Key is confident Toro Rosso will be able to respond with a strong car, he admits the late confirmation "is a massive distraction" for the team.

"We've got various stages of planning, there are some really good guys to work on all this stuff, so we've got a lot of very competent production guys and designers who are working hard to make sure that we're in the best shape possible.

"You'd never want it because it is a massive distraction and it does compromise your car, but it's surprising what you can do when you're faced with uncertainty."

Eric Silbermann: A winter's tailwind

Five things to look forward in F1 in 2016

Key dates for the 2016 F1 season

Use the red tabs on either side of the screen to scroll through more Formula One news and features

Technical feature: All of the 2015 F1 steering wheels

Best of ... Scene at

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

F1 drivers squeeze in tradition before Abu Dhabi epic

On the eve of Formula 1’s thrilling 2025 title decider in Abu Dhabi, the entire…

26 mins ago

Hamilton won't miss current F1 cars - but fears 2026 'might be worse'

As Formula 1 prepares to wave goodbye to its current rule set in Abu Dhabi,…

2 hours ago

F1 drivers rally around Antonelli after abuse from ‘scum of the earth’

On the eve of Formula 1’s season finale in Abu Dhabi, drivers set aside championship…

3 hours ago

Abu Dhabi GP: Thursday's media day in pictures

Formula 1's 2025 season hurtles toward its dramatic close this weekend in Yas Marina, with…

16 hours ago

Verstappen: Let McLaren play games – 'all that matters is the trophy'

In a title showdown charged with tension, numbers, and a hint of intra-team intrigue, Max…

16 hours ago

Leclerc says Ferrari early pivot to 2026 ‘a no-brainer’

Charles Leclerc isn’t sugarcoating Ferrari’s struggles this season – but he also isn’t second-guessing the…

18 hours ago