The 2018 Alfa Romeo Stelvio Quadrifoglio is a high-performance SUV that combines the versatility and practicality of an SUV with the sporty handling and powerful engine of a sports car. Under the hood, the Stelvio Quadrifoglio is powered by a 2.9-liter twin-turbocharged V6 engine that produces an impressive 505 horsepower and 443 lb-ft of torque. This engine is paired with [...]