At the 2011 Geneva Motor Show Alfa Romeo has presented the 4C Concept, a design study of a 4 meters long two-seater sportscar that previews a production model expected to be launched in 2012, with about 15,000-20,000 units to be built in 5 years.
The chassis of the 4C is based on the one developed by Dallara for the KTM X-Bow, with a carbon-fiber passenger cell. It is coupled with a lightweight carbon-aluminum body.
The design features a front end inspired by the lines of the 8C Competizione, reinterpreted with more aggressive details and characterized by the front openings with carbon-fiber trims.
The glass surfaces have “hidden” A-pillars which gives a wraparound effect.
The profile is characterized by the descending roofline and by the interplay of the front and rear shoulder profiles, which form a complex and muscular look.
The sportiness is underlined by the absence of chromed details, replaced by dark/carbon fiber finishes – on the headlights, side mirrors, side air intakes and rear diffuser.
The powertrain features a 200 hp 1750 turbocharged gasoline engine with direct injection and dual continuous variable valve timing, coupled with the “Alfa TCT” twin dry clutch transmission and the DNA dynamic control selector.
The 4C Concept was designed with the aim of minimizing the total weight. It makes extensive use of carbon fiber – used for the body – and aluminum – used for example in the rear subframe and crash boxes.
The result is a total weight of just 850 kg, with a power-to-weight ratio of 4 kg/hp.
The Alfa Romeo 4C Concept reaches a top speed of over 250 km/h and accelerates from 0 to 100 km/h in under 5 seconds.
The suspension layout has high quadrilateral at the front and MacPherson at the rear. The weight distribution is 40% on the front axle and 60% on the rear.