McLaren’s decision to end their unsuccessful partnership with engine provider Honda and switch to Renault power from next season is understood to have been integral in ensuring Alonso would stay with the team.
The Spaniard will contest the 2018 FIA Formula 1 World Championship alongside with Belgium’s Stoffel Vandoorne. The 36-year-old, who has not won a race since the 2013 Chinese Grand Prix and has finished in the points just twice this year, made McLaren sweat over his future.
“It’s fantastic to be able to continue my relationship with everybody at McLaren,” Alonso, who won the title in 2005 and 2006 with Renault said in a McLaren F1 team statement. “It was always where my heart was telling me to stay, and I really feel at home here.
“This is a fantastic team, full of incredible people, with a warmth and friendliness that I’ve never experienced elsewhere in Formula One. I’m incredibly happy to be racing here.
“Just as important, McLaren has the technical resource and financial strength to be able to very quickly win races and world championships in F1. Although the last few years have not been easy, we have never forgotten how to win, and I believe we can achieve that again soon.
“The last three years have given us the momentum to plan and build for the future, and I’m looking forward to that journey. I’m already working hard to make it a success.”