The 2018 Alfa Romeo Stelvio Quadrifoglio is powered by a 505 horsepower all-aluminum, direction-injection 2.9-liter twin-turbocharged V-6 engine paired to an eight-speed automatic transmission all-wheel-drive system taking it from 0-60 mph in an estimated 3.9 seconds to a top speed of 176 mph. Alfa Romeo Stelvio Quadrifogliostarts at $81,590 (including $1,595 destination charge).
