Ron Dennis maintains McLaren will continue to develop their 2014 car even though they are at a clear disadvantage to some teams.
McLaren started the season brightly in Australia, where they claimed two podium finishes after Daniel Ricciardo's disqualification, but have struggled since then and are currently down in sixth place in the Constructors' Championship after eight races of the season.
However, Dennis - who returned to the F1 team at the start of the year as Group CEO - insists they that they don't see this season as a complete write-off.
"No, we never write anything off," Dennis revealed to crash.net.
"We'll fight until the last Grand Prix; that's the nature of the team. It's certainly not a write-off. I'm still very much aware of what is coming down the road and you've just got to get it as development on the car.
"This is a season now ... all the regulations are relatively stable over the next couple of years. So you've got to have constant performance. There's no opportunity to stop and take breaths, you've just got to keep developing and try to come to terms."
Looking to the future, Dennis believes a big step up in performance will take place in the coming years, both aerodynamically and in terms of engine power.
"We've got Peter Prodromou joining us in September and that will be a big step. He will really bolster our revitalised aero team, so I'm not concerned about aero performance next year, that will come right," Dennis continued.
"We've got a steep curve with Honda but at the end of the day we were with them for five years and won 50 percent of the races. So I'm not worried about getting there with Honda, it's just going to be a bit challenging at the beginning and this is motor racing; it goes up and down, you've just got to keep your head down and keep working."