The move is expected to give McLaren a lift in performance and allow it to fight further up the field, but the delay in being finalized has put the team slightly behind schedule in developing its new car.
“We are flat out working on the 2018 car. There are a lot of changes in terms of layout of the engine, so we have to redesign some of the parts we already had in our mind,” Bouller told the official F1 website.
“We are a little behind in terms of decision. I would have loved this decision to have been made a couple of weeks ago.”
McLaren will no longer enjoy exclusive works status in 2018 as it has done with Honda, with Renault also supplying engines to Red Bull and its own factory team.
Boullier remains confident of a strong partnership between McLaren and Renault, though, and is sure it is the best path for the future.
“We are ‘privileged customers’ with Renault. We have the same engine and access to information as Enstone or Red Bull Racing, so this is a real partnership with Renault,” Boullier said.
“We also have the possibility to work with them – to put ideas in the box for the future that might be taken into consideration. That will allow us to influence in the future. But yes, a full works team is different from our situation in 2018.
“But it is like in school: you look at the plusses and the minuses, and looking at all the plusses and minuses we made our decision, which we believe will be the best one for McLaren for at least the next three years.”
“I’m so excited to join Andretti United Extreme E,” Munnings said in a release. ““I was really intrigued when I first heard about Extreme E, I just knew I had to be involved. The male / female racing partnership is a fantastic and exciting new concept. The season has incredible locations and the racing will be very exciting. It will be a new challenge for the teams and drivers, and I’m so thrilled to be working with such a strong team.
“The championship is a really innovative concept, it’s combining motorsport and science and will produce an important legacy in each race location. Bringing the platform that motorsport has in line with the awareness that the planet needs right now is awesome and a really important message.”
Said Hansen: “Going into the Extreme E will be a new chapter in my career, one that I am extremely excited about. It is something brand new, not only for me, but the whole of motorsport. The format is something
we’ve never seen before. I’m also delighted to be able to carry the message of something bigger – talking about the environment and doing something good for the world – that’s something that really drives me. It’s going to be a big adventure in life to see these locations and I’m going to do my best in carrying this responsibility and hopefully making people aware of the challenges we have in the world, together with our passion for racing.”