The 2026 Alfa Romeo Giulia Quadrifoglio has not been significantly changed from its predecessor in ways that the specification sheet reveals. The 2.9-liter twin-turbocharged V6, producing 505 horsepower, is carried forward. The carbon fiber driveshaft, the aluminum-intensive structure, and the rear-wheel-drive layout remain. The suspension — double wishbones at the front, multilink at the rear — is calibrated to deliver the steering feel and handling balance that made the previous generation the benchmark for driver engagement in the sports sedan segment.