The new challenger conforms to next season’s less-restrictive regulations, which allow for the use of a larger 36mm restrictor – up from 33mm – and more aggressive aerodynamics.
It’s based on the all-new five-door-only C3, but the competition car's back doors have been welded up and it sits on a wider track that's hidden beneath swelled wheel arches. The car measures 1875mm wide, which is 55mm wider than Citroën’s last WRC machine, the DS3 WRC.
The C3 WRC is powered by a 1.6-litre four-cylinder turbocharged engine with 2.5bar of boost to produce 380bhp, which is 20% more than the DS3 WRC, and 295lb ft. The unit uses a machined block and is closely related to the engine found in Citroën’s C-Elysée WTCC racer.
"I think it is safe to say that the Citroën C3 WRC has the most accomplished engine we have ever built,” said engine manager Patrice Davesne. “We have boldly opted for some radical technological solutions, which I obviously won't detail here. But we're proud of the work we have done, especially on reducing friction."