The Alfa Romeo Giulia Quadrifoglio is faster around the Nurburgring that any other four-door car on the planet. A large contributor to its pace is its crazy powerful 505 horsepower 2.9-liter twin-turbocharged V6 engine, but there’s also some more advanced engineering at play with the car, specifically in regards to aerodynamics.
You probably already knew the Giulia Quadrifoglio featured an active front splitter that aids in its air management, but you might not have known the vehicle also features a flat underbody with various ducts and blades that channel air to the large rear lower diffuser. This helps suck the car to the track at speed, similar to how a rear wing or front dive planes might, but without the garish look afforded by such racing-inspired pieces.
Autoline daily briefly went over the Giulia’s underbody air management in a recent episode by putting the vehicle up on a lift. Check it out above. Oh, and try and excuse the host’s pronunciation of a hard ‘G’ in Quadrifoglio. He must have missed his Italian lesson.