The statement added that the decision had been communicated and agreed with the British team.
Suninen said: “It’s time for us to say goodbye to M-Sport. I’m grateful that I had a chance to be one of the WRC team drivers for several years. It has been a journey full of learning with some great moments. However, nothing lasts forever, and we have now decided it’s time to go on to new challenges.”
The statement concluded with the news that further information on Suninen’s future in the World Rally Championship would be ‘coming soon.’
After two years driving the factory Ford Fiesta WRC, Suninen’s programme had been cut for this year with the 27-year-old sharing the World Rally Car with Frenchman Adrien Fourmaux and driving a Ford Fiesta Rally2 on the other rounds.
Suninen’s last outing with M-Sport Ford was at Renties Ypres Rally Belgium earlier this month, where he retired with a damaged engine.
He was scheduled to remain in the Fiesta Rally2 car for next month’s Acropolis Rally Greece (9 - 12 September), but a decision on whether he would be in the Fiesta WRC for Rally Finland hadn’t been taken.