He is the son of two time World Rally Champion Marcus Grönholm.

a Fifteen championship points deducted for use of a fourth engine seal.

[1] b Ten championship points deducted for use of a new turbo seal after initial scrutineering.

[2] c Fifteen championship points deducted for use of more than three engine seals in the season.

[3] d Ten championship points deducted for use of a seventh turbocharger in the season.