Motor Trend   +  turbo

Citroen has releases photos and details for the DS4 Racing Concept ,which will debut at the Geneva Motor Show in next month.
The concept car is based on the current DS4 five-door with a long list of modifications that showcases the brand’s success and expertise as a World Rally Championship competitor.
Under the hood is a turbocharged 1.6-liter four-cylinder engine. In the regular DS4 this engine is tuned to develop as much as 200 horsepower but in DS4 Racing guise it now spits out a total 256 horsepower.
The engine was developed jointly by PSA Peugeot-Citroen and BMW, and it is widely used in each brand’s lineup. It powers the MINI Cooper, the Peugeot RCZ, and even the Citroen DS3 Racing, just to name a few.
The suspension has been substantially uprated to deal with the power hike - a 35mm drop all-round - and a wider front and rear track. These changes complement the 19-inch wheels that are fitted to the concept, housing the huge 380mm brake discs and four-pot callipers.
The DS4 may seem to be an unlikely basis for a hot hatch, being simply a more luxurious take on the rather bland C4 compact. It’s a five-door which tries to look like a three-door crossover, with hidden rear door handles and fixed rear side windows. It also is jacked up to sit higher than the C4.

Press Release
Citroën has sold more than 180,000 DS line models worldwide since launch. The adventure continues at the Geneva Motor Show with the reveal of the DS4 Racing Concept. As with the DS3 Racing, the engineers at Citroën Racing and the styling team have firmly stamped the DS4 with the image of the Brand's racing department.
Making its world debut at the Geneva Motor Show, the DS4 Racing Concept features"100% Racing" attributes. The chassis is 35 mm lower than the regular model and track is 55 mm wider at the front and 75 mm wider at the back. The concept car also sports an air diffuser, a front bumper panel, a lower-body belt line and wing extensions. Citroën Racing has tweaked the 1.6-litre turbo engine to develop 256 bhp, or 160 bhp per litre - a record for a series-production car. This spectacular performance comes hand in hand with controlled CO2 emissions of 155 g/km.
Citroën Racing engineers have also redeveloped the running gear with the utmost precision. The concept car is equipped with four-pot, fixed calliper brakes at the front, with special discs widened to 380 mm in diameter, and shod with larger, 19-inch wheels (235/40).
Another stand-out feature of the Citroën DS4 Racing Concept is its matte grey, textured-effect paint - a first in the automotive sector. The grain of the paint catches the light differently and further enhances the body styling, while the colour is sober, modern and robust and ideally suited to a sports car. To refine the exterior aesthetic, the concept car gets a two-tone roof and specially-designed, two-tone wheel rims.