A much-anticipated C4 World Rally Car, intended to replace the multiple World Rally Championship-winning Citroën Xsara WRC, was first sighted in 2004 with testing duties assigned to double world rally champion Carlos Sainz.
Having once been earmarked for a late 2005 competitive debut, the decision by the controlling PSA Group to withdraw both Citroën and stablemates Peugeot from works participation at the end of the 2005 season led to the momentary abandonment of the project.

Since then, however, the marque etched in a comeback for the 2007 season, during which a revived C4 WRC was scheduled for its official debut, with the then-thrice world champion Sébastien Loeb as the official first driver, and Dani Sordo, the 2005 Junior World Rally Champion, later confirmed alongside him after an impressive 2006 season for the Spaniard.
In their official debut at the 2007 Monte Carlo Rally, the two C4 WRCs finished 1-2, with Loeb winning ahead of Sordo.
Loeb has subsequently secured the 2007, 2008, and 2009 drivers' titles, with Citroën claiming the 2008 and 2009 manufacturers' championships.

In the 2009 season, Citroën's satellite team, Citroën Junior Team, ran a C4 WRC for Evgeny Novikov, Conrad Rautenbach, and the 2008 junior world champion Sébastien Ogier.
For the 2010 season, the team ran a C4 WRC for Ogier and the 2007 Formula One world champion Kimi Räikkönen.
The 2003 world rally champion Petter Solberg competes in a C4 WRC for his private team.
The C4 WRC was replaced by the DS3 WRC for the 2011 WRC season.

Citroën also unveiled a hybrid concept WRC car at the 2008 Paris Motor Show.
The Citroën C4 WRC Hymotion4 uses a KERS system similar to that in the Peugeot 908 HY.
A much-anticipated C4 World Rally Car, intended to replace the multiple World Rally Championship-winning Citroën Xsara WRC, was first sighted in 2004 with testing duties assigned to double world rally champion Carlos Sainz. Having once been earmarked for a late 2005 competitive debut, the decision by the controlling PSA Group to withdraw both Citroën and stablemates Peugeot from works participation at the end of the 2005 season led to the momentary abandonment of the project.
Since then, however, the marque etched in a comeback for the 2007 season, during which a revived C4 WRC was scheduled for its official debut, with the then-thrice world champion Sébastien Loeb as the official first driver, and Dani Sordo, the 2005 Junior World Rally Champion, later confirmed alongside him after an impressive 2006 season for the Spaniard. In their official debut at the 2007 Monte Carlo Rally, the two C4 WRCs finished 1-2, with Loeb winning ahead of Sordo. Loeb has subsequently secured the 2007, 2008, and 2009 drivers' titles, with Citroën claiming the 2008 and 2009 manufacturers' championships.
In the 2009 season, Citroën's satellite team, Citroën Junior Team, ran a C4 WRC for Evgeny Novikov, Conrad Rautenbach, and the 2008 junior world champion Sébastien Ogier. For the 2010 season, the team ran a C4 WRC for Ogier and the 2007 Formula One world champion Kimi Räikkönen. The 2003 world rally champion Petter Solberg competes in a C4 WRC for his private team. The C4 WRC was replaced by the DS3 WRC for the 2011 WRC season.
Citroën also unveiled a hybrid concept WRC car at the 2008 Paris Motor Show. The Citroën C4 WRC Hymotion4 uses a KERS system similar to that in the Peugeot 908 HY.
Citroën C4