The Alfa Romeo Giulia Quadrifoglio, specifically the 2.9 V6 BiTurbo Automatic variant produced from 2018 to October 2022, represents the high-performance pinnacle of the Giulia (952) generation. Positioned as the flagship model, it aimed to re-establish Alfa Romeo’s sporting credentials in the premium compact executive car segment, directly challenging established rivals like the BMW M3 and Mercedes-AMG C63. This variant combined a potent twin-turbocharged V6 engine with an eight-speed automatic transmission and rear-wheel drive, delivering exhilarating performance and a distinctly Italian driving experience. The Quadrifoglio was a crucial model for Alfa Romeo’s re-introduction to the North American market, showcasing the brand’s engineering capabilities and design flair.
Technical Specifications
| Brand | Alfa Romeo |
| Model | Giulia |
| Generation | Giulia (952) |
| Type | Quadrifoglio 2.9 V6 BiTurbo (510 Hp) Automatic |
| Start of production | 2018 |
| End of production | October, 2022 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 4-5 |
| Doors | 4 |
| CO2 emissions (WLTP) | 238-243 g/km |
| Fuel consumption (urban) | 11.9 l/100 km (19.8 US mpg, 23.7 UK mpg, 8.4 km/l) |
| Fuel consumption (extra urban) | 7.6 l/100 km (30.9 US mpg, 37.2 UK mpg, 13.2 km/l) |
| Fuel consumption (combined) | 9.2 l/100 km (25.6 US mpg, 30.7 UK mpg, 10.9 km/l) |
| CO2 emissions | 214 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 3.9 sec |
| Acceleration 0 – 62 mph | 3.9 sec |
| Acceleration 0 – 60 mph | 3.8 sec |
| Maximum speed | 307 km/h (190.76 mph) |
| Power | 510 Hp @ 6500 rpm |
| Torque | 600 Nm @ 2500 rpm (442.54 lb.-ft. @ 2500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | 670050436 |
| Engine displacement | 2891 cm3 (176.42 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 86.5 mm (3.41 in.) |
| Piston Stroke | 82 mm (3.23 in.) |
| Compression ratio | 9.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Engine oil capacity | 7 l (7.4 US qt | 6.16 UK qt) |
| Coolant capacity | 11.2 l (11.83 US qt | 9.85 UK qt) |
| Kerb Weight | 1620 kg (3571.49 lbs.) |
| Max. weight | 2150 kg (4739.94 lbs.) |
| Max load | 530 kg (1168.45 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Fuel tank capacity | 58 l (15.32 US gal | 12.76 UK gal) |
| Length | 4639 mm (182.64 in.) |
| Width | 1874 mm (73.78 in.) |
| Width including mirrors | 2024 mm (79.69 in.) |
| Height | 1433 mm (56.42 in.) |
| Wheelbase | 2820 mm (111.02 in.) |
| Front track | 1555 mm (61.22 in.) |
| Rear track | 1609 mm (63.35 in.) |
| Minimum turning circle | 10.8 m (35.43 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 8 |
| Gearbox type | Automatic transmission |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs, 360×32 mm |
| Rear brakes | Ventilated discs, 350×28 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric |
| Tires size | 245/35 ZR19 93Y; 285/30 ZR19 98Y |
| Wheel rims size | 8.5J x 19; 10J x 19 |
Powertrain & Engine Architecture
The heart of the Giulia Quadrifoglio is the 2.9-liter twin-turbocharged V6 engine, co-developed with Ferrari. Designated as the 670050436 engine code, it features a 90-degree V-angle and utilizes direct fuel injection. The engine’s aluminum block and cylinder heads contribute to its relatively lightweight construction. The twin-turbochargers, positioned within the V, provide rapid response and minimize turbo lag. The engine produces 510 horsepower at 6,500 rpm and 600 Nm (442.54 lb-ft) of torque at 2,500 rpm. This power is delivered through an eight-speed automatic transmission, sourced from ZF, which offers quick and smooth gear changes. The transmission is calibrated for performance, with shorter gear ratios to maximize acceleration.
Driving Characteristics
The Giulia Quadrifoglio Automatic delivers a thrilling driving experience. The combination of the powerful engine and responsive transmission results in a 0-60 mph time of just 3.8 seconds and a top speed of 190.76 mph. While the automatic transmission doesn’t offer the same level of driver engagement as the available six-speed manual, it provides seamless shifts and allows the driver to focus on maximizing performance. The rear-wheel-drive configuration contributes to a balanced chassis and provides a sporty feel. The Giulia Quadrifoglio’s steering is precise and well-weighted, offering excellent feedback to the driver. Compared to lower-powered Giulia variants, the Quadrifoglio offers a significantly more aggressive and dynamic driving experience.
Equipment & Trim Levels
The Quadrifoglio trim came standard with a comprehensive list of features, including leather upholstery, sport seats, a performance-tuned suspension, and Brembo brakes. Interior appointments included carbon fiber trim and aluminum pedals. Standard technology features included a 8.8-inch infotainment system with navigation, a rearview camera, and a suite of advanced driver-assistance systems. Optional extras included upgraded audio systems, adaptive cruise control, and a sunroof. The Quadrifoglio was positioned as the premium offering in the Giulia lineup, and its price reflected its performance and features.
Chassis & Braking
The Giulia Quadrifoglio features a sophisticated chassis designed for optimal handling and performance. The front suspension utilizes a double wishbone design, while the rear suspension employs an independent multi-link setup. This configuration provides excellent wheel control and minimizes body roll. The braking system consists of ventilated discs at all four corners, with Brembo calipers providing exceptional stopping power. The front brakes measure 360×32 mm, while the rear brakes are 350×28 mm. An ABS (Anti-lock braking system) is standard.
Market Reception & Comparison
The Alfa Romeo Giulia Quadrifoglio was generally well-received by automotive critics. It was praised for its powerful engine, engaging driving dynamics, and stylish design. However, some critics noted the relatively small trunk space and the occasional software glitches. Compared to its rivals, the Giulia Quadrifoglio offered a unique blend of Italian flair and performance. Fuel economy was rated at 25.6 US mpg combined, which was competitive for a high-performance sedan. Reliability reports have been mixed, with some owners reporting issues with the infotainment system and electrical components.
Legacy
The Alfa Romeo Giulia Quadrifoglio Automatic has established itself as a desirable performance sedan in the used car market. Its potent engine, engaging driving dynamics, and distinctive styling continue to appeal to enthusiasts. While long-term reliability remains a concern for some, the Quadrifoglio’s performance potential and overall driving experience make it a compelling option for those seeking a high-performance Italian sedan. The 2.9L BiTurbo V6 engine is considered a modern classic, and well-maintained examples are likely to hold their value in the years to come.
