The latest Alfa Romeo creation has made its debut at the Los Angeles Auto Show, in Quadrifoglio guise. Launched under the name Stelvio, it is the brand's first sport utility vehicle in over a century of history.

State-of-the-art, innovative engines are the hallmark of a genuine Alfa Romeo. That's why the Stelvio Quadrifoglio mounts a unique power plant in terms of both technology and performance - a 510bhp 2.9-litre V6 bi-turbo petrol with an eight-speed automatic transmission.

Drawing inspiration from Ferrari technologies and technical know-how, the six-cylinder bi-turbo petrol engine is made entirely of aluminium to reduce the weight of the vehicle, especially over the front axle.

What's more, despite its phenomenal torque and horsepower, the engine is also incredibly efficient in terms of fuel consumption, thanks to its electronically-controlled cylinder deactivation system. And like all Alfa Romeo's next generation engines, the Stelvio Quadrifoglio's 2.9-litre V6 bi-turbo petrol unit will, of course, deliver that distinctive Alfa Romeo engine note to complement its performance.