The Audi SQ8 (4M) 4.0 TFSI V8 quattro tiptronic represents the high-performance variant of Audi’s Q8 SUV, produced from July 2020 to September 2023. Positioned as the performance flagship within the Q8 range, it slots above the standard Q8 and the Q8 55 TFSI, offering significantly enhanced power and dynamic capabilities. This model is part of the fourth generation (4M) of the Q8 series, built on the MLB Evo platform shared with other Volkswagen Group vehicles like the Porsche Cayenne and Lamborghini Urus. The SQ8 aimed to deliver a blend of luxury, practicality, and exhilarating performance, appealing to buyers seeking a sporty SUV experience.
Technical Specifications
| Brand | Audi |
| Model | SQ8 |
| Generation | SQ8 (4M) |
| Type (Engine) | 4.0 TFSI V8 (507 Hp) quattro tiptronic |
| Start of production | July, 2020 |
| End of production | September, 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban (NEDC) | 16.6 l/100 km (14.2 US mpg, 17 UK mpg, 6 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 9.4 l/100 km (25 US mpg, 30.1 UK mpg, 10.6 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 12.0 l/100 km (19.6 US mpg, 23.5 UK mpg, 8.3 km/l) |
| CO2 emissions (NEDC) | 275 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.1 sec |
| Acceleration 0 – 62 mph | 4.1 sec |
| Acceleration 0 – 60 mph | 3.9 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d-ISC-FCM |
| Weight-to-power ratio | 4.5 kg/Hp, 223.3 Hp/tonne |
| Weight-to-torque ratio | 2.9 kg/Nm, 339.2 Nm/tonne |
| Power | 507 Hp @ 5500 rpm |
| Power per litre | 126.9 Hp/l |
| Torque | 770 Nm @ 2000-4000 rpm (567.92 lb.-ft. @ 2000-4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DCU |
| Engine displacement | 3996 cm3 (243.85 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-Turbo, Intercooler |
| Engine oil capacity | 9.5 l (10.04 US qt, 8.36 UK qt) |
| Coolant | 14.9 l (15.74 US qt, 13.11 UK qt) |
| Kerb Weight | 2270 kg (5004.49 lbs.) |
| Max. weight | 2960 kg (6525.68 lbs.) |
| Max load | 690 kg (1521.19 lbs.) |
| Trunk (boot) space – minimum | 605 l (21.37 cu. ft.) |
| Fuel tank capacity | 85 l (22.45 US gal, 18.7 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 3500 kg (7716.18 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 140 kg (308.65 lbs.) |
| Length | 5006 mm (197.09 in.) |
| Width | 1995 mm (78.54 in.) |
| Width including mirrors | 2190 mm (86.22 in.) |
| Height | 1708 mm (67.24 in.) |
| Wheelbase | 2996 mm (117.95 in.) |
| Front track | 1679 mm (66.1 in.) |
| Rear (Back) track | 1687 mm (66.42 in.) |
| Front overhang | 987 mm (38.86 in.) |
| Rear overhang | 1023 mm (40.28 in.) |
| Minimum turning circle (turning diameter) | 13.3 m (43.64 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission tiptronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 285/45 R21 |
| Wheel rims size | 10J x 21 |
INTRODUCTION
The Audi SQ8 4.0 TFSI quattro tiptronic, launched in 2020, is a high-performance luxury SUV that builds upon the foundation of the standard Q8. It represents Audi’s commitment to blending practicality with exhilarating performance. The “4M” designation refers to the second generation of the Q8, which debuted in 2018. The SQ8 variant specifically targets drivers who desire a powerful and refined SUV experience, offering a compelling alternative to traditional sports cars and other performance SUVs. It was sold primarily in Europe and North America, with smaller numbers reaching other markets.
Powertrain & Engine Architecture
At the heart of the SQ8 is Audi’s 4.0-liter twin-turbocharged V8 engine, internally designated as the DCU engine code. This engine produces 507 horsepower at 5,500 rpm and a substantial 770 Nm (567.92 lb-ft) of torque between 2,000 and 4,000 rpm. The engine utilizes a direct injection fuel system, delivering fuel directly into the combustion chambers for improved efficiency and performance. The valvetrain employs four valves per cylinder, optimizing airflow for increased power output. The twin-turbochargers, with an intercooler, provide forced induction, significantly boosting power and torque across the rev range. The engine is longitudinally mounted, powering all four wheels through Audi’s quattro all-wheel-drive system.
The SQ8 is exclusively paired with an eight-speed tiptronic automatic transmission. This transmission offers smooth and rapid gear changes, contributing to the vehicle’s overall performance. The tiptronic system allows for both automatic shifting and manual control via steering wheel-mounted paddles, giving the driver greater control over the driving experience. The transmission is designed to handle the high torque output of the V8 engine, ensuring durability and reliability.
Driving Characteristics
The SQ8 4.0 TFSI delivers impressive acceleration, achieving 0-60 mph in approximately 3.9 seconds. The combination of the powerful V8 engine and the quick-shifting tiptronic transmission provides a responsive and engaging driving experience. While the automatic transmission prioritizes smooth shifts, it doesn’t sacrifice responsiveness. Compared to the standard Q8’s engines, the SQ8 offers a significantly more potent power delivery, particularly in the mid-range. The quattro all-wheel-drive system provides excellent traction and stability, especially in adverse weather conditions. The SQ8’s suspension is tuned for a balance between comfort and handling, offering a more dynamic driving experience than the standard Q8, but without being overly harsh. The gear ratios are optimized for both acceleration and highway cruising, providing ample power in all situations.
Equipment & Trim Levels
The SQ8 came standard with a comprehensive list of features, reflecting its position as the performance flagship of the Q8 range. Standard equipment included Audi’s virtual cockpit digital instrument cluster, a premium sound system, leather upholstery, heated and ventilated front seats, and a panoramic sunroof. Exterior features included distinctive SQ8 styling cues, such as a unique grille, aggressive bumpers, and quad exhaust outlets. Optional extras included adaptive air suspension, massaging seats, and a variety of driver-assistance systems. Interior trim options allowed for customization, with choices in wood, aluminum, and carbon fiber accents.
Chassis & Braking
The SQ8 features an independent multi-link suspension at both the front and rear axles, providing a comfortable and controlled ride. The suspension is specifically tuned to handle the increased power and weight of the SQ8, offering improved stability and handling. The braking system consists of ventilated discs at all four corners, providing ample stopping power. Larger brake rotors and calipers are often included as standard equipment compared to lower trims. The SQ8 typically includes Audi’s drive select system, allowing the driver to adjust the suspension and steering settings to suit their preferences. Stabilizer bars are thicker than those found on the standard Q8, further reducing body roll during cornering.
Market Reception & Comparison
The Audi SQ8 was generally well-received by automotive critics, who praised its powerful engine, refined interior, and engaging driving dynamics. Compared to the standard Q8 and the Q8 55 TFSI, the SQ8 offered a significant performance upgrade, appealing to drivers who prioritized power and handling. However, the SQ8’s higher price and increased fuel consumption were noted as potential drawbacks. Compared to rivals such as the Porsche Cayenne S and the BMW X6 M Sport, the SQ8 offered a compelling blend of performance, luxury, and practicality. Fuel economy, while respectable for a vehicle of its size and performance, was lower than that of the less powerful Q8 variants.
Legacy
The Audi SQ8 4.0 TFSI V8 quattro tiptronic has established itself as a desirable performance SUV in the used car market. The 4.0 TFSI engine has proven to be relatively reliable, although regular maintenance is essential. The tiptronic transmission is also known for its durability. The SQ8’s combination of performance, luxury, and practicality continues to appeal to buyers seeking a high-end SUV experience. As a relatively recent model, the SQ8 is expected to remain a sought-after vehicle for years to come, particularly among enthusiasts who appreciate its powerful engine and refined driving dynamics.
