2015 F1 season: F1i's rookie review
Use the red tabs on either side of the screen to scroll through more Formula One news and features
Click here for a gallery of the McLaren MP4-X
Keep up to date with all the F1 news via Facebook and Twitter
Adrian Newey expects Toro Rosso and McLaren - thanks to progress from Honda - to be a threat to Red Bull next season.
Red Bull will use a Renault power unit after failing to secure a supply from another engine manufacturer for 2016, though it will rebrand the engine as a Tag-Heuer. However, Newey is not expecting much progress from Renault compared to the other manufacturers and he believes both McLaren and Red Bull's sister team Toro Rosso are likely to move ahead.
"Toro Rosso, our sister team by having a 2015 Ferrari, will be considerably ahead of this year's Renault power unit," Newey told Motorsport.com. "I believe Honda, what we have seen, will make a good step. I think their internal combustion engine is a reasonable engine.
"Their problem this year has been that they made the recovery units on the turbo, the MGU-H, far too small. But that is an easy problem to address over the winter.
"So, next year's going to be very difficult for us. It's really down to, I think, what happens next with the sport, for 2017 and beyond. Is there desire from the governing body to allow private teams such as ourselves to properly have competitive engines or not?"
Honda motorsport boss Yasuhisa Arai recently told F1i the engine manufacturers target is to produce a "more sophisticated" version of its 'size zero' power unit in 2016.
2015 F1 season: F1i’s teams review
2015 F1 season: F1i's rookie review
Use the red tabs on either side of the screen to scroll through more Formula One news and features
Click here for a gallery of the McLaren MP4-X
Keep up to date with all the F1 news via Facebook and Twitter
Mercedes has found a new way to reach for the stars, recruiting one of the…
McLaren arrives in Austin hoping a package of MCL40 upgrades can halt its slide after…
Toto Wolff has revealed that he is already looking for the people who will take…
Christian Horner has reopened Formula 1’s most explosive modern controversy, admitting that he deliberately turned…
Cadillac is bringing a touch of the American West to the Formula 1 stage in…
The FIA is tightening its grip on Formula 1’s cost-control framework, introducing sweeping restrictions designed…