McLaren boss Zak Brown admitted that Honda's difficulties seriously complicated his task of bringing on board new commercial sponsors for the team.
The Woking-based outfit's dismal three-year partnership with the Japanese manufacturer logically took its toll on McLaren's ability to attract big money to the team.
But it's new engine deal with Renault will hopefully turn its fortunes around and subsequently revive McLaren's commercial prospects. An improvement which has already taken hold, says Brown.
"Fortunately, I have experience in this area but I knew that during the season, you wouldn't find any new partners when you have the problems we had," he told Auto Motor und Sport.
"We could not sell to potential sponsors the story that things will get better next year. That was one of the reasons why we needed a new engine supplier," Brawn admitted.
"We had to prove we are willing to change things and keep our drivers. People still believe in McLaren, they believe in Renault, and they believe in Alonso and Vandoorne.
"So I can say now that our discussions with new sponsors have gone very well," he added.