Innovative materials

Alfa Romeo uses ultralight materials in every component. These materials are not only light but also durable, stiff and dynamically efficient. The 4C begins with the solid foundation of a Carbon Fiber monocoque chassis- three times stronger and seven times lighter than conventional steel. Front and rear aluminum subframes combine strength with weight-saving technologies. Sheet Molded Compound (SMC) is used for the outer body and is 20% lighter and more stable than steel — and also resists corrosion.

Performance

The advanced engine technology of the Alfa Romeo 4C maximizes torque at low engine speeds and delivers more power in response to driver input. The control unit determines the valve timing to encourage fresh airflow from the intake through to the exhaust during the overlap period. By improving the circulation in the combustion chamber, this direct flow increases combustion efficiency and turbine speed and reduces turbo lag.

The engine is also equipped with a new generation turbocharger and a pulse converter exhaust manifold that uses pressure waves to boost torque at low engine speeds. The manifold and the turbine are made from microcast steel and designed to operate at very high temperatures (over 1,000°F) — a prerequisite to low fuel consumption on medium/ high-speed highway trips. The wastegate valve is another essential device for engine efficiency. This adjusts turbo pressure control logic to suit driving conditions, minimizing pumping losses.

Dynamic responses

The engine and traction configuration give Alfa Romeo 4C one of the most rewarding dynamic responses while driving. The 4C will accelerate as quickly as cars boasting higher horsepower — yet will corner sharper, brake harder, turn in quicker and respond more readily. It’s the kind of gratifying response that makes each and every trip something to look forward to.

Rear-wheel drive allows better grip under acceleration when engine power throws weight toward the rear of the car. Rear-wheel drive permits entering curves at higher speeds, delivering a far more intense and rewarding driving experience.