2018 Alfa Romeo Stelvio Quadrifoglio is a 505-horsepower brute

The Quadrifoglio is the range-topping version of the Alfa Romeo Stelvio crossover.

Pricing starts just below $80,000, and can rise as high as $98,000 with all the options added.

Under the hood is a Ferrari-sourced 2.9-liter twin-turbo V6 engine that makes 505 horsepower and 443 pound-feet of torque.

An eight-speed automatic transmission handles shifting duties, controlled by a really nice set of steering column-mounted paddles.

Alfa Romeo says the Stelvio Quadrifoglio will accelerate to 60 miles per hour in 3.6 seconds. That's freaking quick.

All Stelvio Quadrifoglios ride on 20-inch wheels with staggered, low-profile tires.

Fold the rear seats and you'll find 56.5 cubic feet of space. Not too shabby.

Holy moly, that exhaust sound. Aural delight, indeed.

This top-trim Stelvio comes with standard xenon headlights and LED running lights.

Keep scrolling to see more photos of the 2018 Alfa Romeo Stelvio Quadrifoglio.