File picture: Chris Wattie / Reuters

London - Honda's motorsport head has portrayed former champion McLaren as 'systematic' and set in its ways as the Formula One partners prepare to separate at the end of the season.

McLaren is currently ninth (out of 10 teams) in the constructors' championship and the team has directed much of the blame at Honda, whose engine has suffered embarrassing failures and is no match for rivals.

"Working with McLaren, I’ve realised that they are a very big company which is very systematic," Masashi Yamamoto said in an interview published on the Honda website (en.hondaracingf1.com).

"It’s obviously very strong because of that but at the same time they can find it hard to adapt to change."

He gave no specific examples.

Similar comments have been made in the past about Honda, which announced with McLaren last Friday that its partnership was ending.

McLaren, the sport's second most successful team in terms of race wins, will be teaming up with Renault in 2018 while Honda is joining Red Bull-owned Toro Rosso.

Yamamoto said Honda would have preferred to stay with McLaren but recognised that it had not been able to reach performance and reliability targets set by the team.

The company was determined to succeed with its Formula One project, however, and still had three years with the current engine regulations to show what it could do.

Toro Rosso principal Franz Tost understood Japanese culture, said Yamamoto, and communication was good.

"We have seen that they also have a young factory and are growing, which for Honda is very important because we can work with the same mentality and have the same approach," he added.

"If we compare both teams with different cuisines, let’s say McLaren is a very sophisticated French cuisine, that’s the way it is.

"Then Toro Rosso is more like a countryside, homemade delicious stew where you can add new ingredients. We’re excited to do that."