The Citroën DS3 R3 has benefitted from the extensive expertise acquired by Citroën Racing through its involvement in the World Rally Championship.Under the bonnet lies a four-cylinder 1.6-litre THP (high pressure turbo) engine, which has been developed using the PSA production engine. Specific racing parts (air box, camshaft, pistons, connecting rods, exhaust and turbo systems, electronic unit, etc.) have been deployed to boost the car's power to 210bhp.The 1.6-litre THP (high pressure turbo) engine is very closely related to the production model used throughout the PSA Group. Fitted with a regulation-compliant 29mm turbo flange, it develops 210bhp of power and generates a torque of 350Nm (with commercially available fuel). This second value improves traction and delivers excellent versatility at all engine speeds.All of the drivers agreed that the car was easy to drive and highlighted three strengths: the torque of the 1.6-litre engine, the semi-automatic gearbox and the suspension.