2015 Alfa Romeo 4C Spider 237 horsepower

2015 Alfa Romeo 4C Spider 

Adding to the Alfa Romeo brand's legendary racing history and the exciting experience of open-air motoring, the all-new 2015 Alfa Romeo 4C Spider debuts with panoramic views complemented with a signature Alfa exhaust note, plus the essential sportiness of the award-winning 4C Coupe: handcrafted in Modena, Italy; groundbreaking and seductive Italian style; state-of-the-art Formula 1 inspired carbon fiber monocoque chassis that enables an incredible power-to-weight ratio; advanced technologies, including the all-aluminum 1750 cc turbocharged engine with direct-injection, dual intercoolers, and variable-valve timing that enable supercar-level performance.

The engine is the "beating heart" of any Alfa Romeo, and for the all-new 2015 4C Spider, it beats to an innovative, all-aluminum 1750 cc turbocharged and intercooled engine with dual (intake and exhaust) continuous variable-valve timing (VVT) that delivers 237 horsepower - or an impressive 136 horsepower-per-liter.

2015 Alfa Romeo 4C Spider 

To ensure exceptional performance and drivability on the racetrack or city streets, the 1750 cc turbocharged engine features cutting-edge technologies. High pressure direct-injection (2,900 psi / 200 bar) with multi-hole fuel injectors provide a more even spray. To increase performance, while reducing oil consumption and emissions, the cylinder head inlet ducts have an optimized design, while cylinder liners are made from thin cast-iron. 

2015 Alfa Romeo 4C Spider 

The addition of an electric thermostat helps the 1750 cc turbo engine reduce warm-up times and tailpipe emissions. Minimizing vibration at higher engine speeds, the engine's crankshaft features eight counter weights. Last, intake and exhaust systems are optimized for Alfa Romeo 4C Spider's mid-engine layout.

2015 Alfa Romeo 4C Spider 

A new generation turbocharger features a pulse-converter exhaust manifold to exploit pressure waves and boost torque at low-engine speeds. A waste gate valve adjusts turbo pressure and improves the engine's efficiency. 

2015 Alfa Romeo 4C Spider 

Advanced turbo technology enables the Alfa Romeo 4C Spider to maximize torque at low engine speeds and deliver more response to driver input by increasing combustion efficiency and turbine speed, all while eliminating turbo lag. As a result, torque delivery is instantaneous, with a peak of 258 ft.-lb. (350 N•m); 80 percent of which is available at only 1,700 rpm.