2019-2023 Audi S7 Sportback (C8) 2.9 TFSI V6 (444 Hp) Mild Hybrid quattro tiptronic

The Audi S7 Sportback (C8) 2.9 TFSI V6, produced from 2019 to 2023, represents the performance-oriented variant of Audi’s luxurious five-door coupe. Positioned between the standard A7 Sportback and the even more potent RS 7, the S7 C8 aimed to deliver a compelling blend of grand touring comfort, everyday practicality, and exhilarating performance. It’s built on the Volkswagen Group’s MLB Evo platform, shared with models like the Porsche Panamera and Bentley Continental GT, signifying a commitment to sophisticated engineering. This particular iteration, equipped with the 2.9-liter turbocharged V6 engine and an eight-speed tiptronic automatic transmission coupled with Audi’s quattro all-wheel-drive system, became a popular choice for buyers seeking a refined yet capable performance vehicle.

Technical Specifications

Brand Audi
Model S7
Generation S7 Sportback (C8)
Type (Engine) 2.9 TFSI V6 (444 Hp) Mild Hybrid quattro tiptronic
Start of production 2019
End of production 2023
Powertrain Architecture MHEV (Mild Hybrid Electric Vehicle)
Body type Liftback
Seats 5
Doors 5
Fuel consumption (urban) 13.1 l/100 km (18 US mpg, 21.6 UK mpg)
Fuel consumption (extra urban) 8.4 l/100 km (28 US mpg, 33.6 UK mpg)
Fuel consumption (combined) 10.7 l/100 km (22 US mpg, 26.4 UK mpg)
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 4.6 sec
Acceleration 0 – 60 mph 4.5 sec
Maximum speed 250 km/h (155.34 mph), Electronically limited
Weight-to-power ratio 5.1 kg/Hp
Weight-to-torque ratio 3.7 kg/Nm
Net battery capacity 0.5 kWh
Battery voltage 48 V
Battery technology Lithium-ion (Li-Ion)
Battery weight 10 kg (22.05 lbs)
Power 444 Hp
Torque 600 Nm (442.54 lb.-ft.)
Engine displacement 2894 cm3 (176.6 cu. in.)
Number of cylinders 6
Cylinder Bore 84.5 mm (3.33 in.)
Piston Stroke 86 mm (3.39 in.)
Compression ratio 10:1
Engine oil capacity 7.6 l (8.03 US qt, 6.69 UK qt)
Kerb Weight 2248 kg (4955.99 lbs)
Trunk space (minimum) 697 l (24.61 cu. ft.)
Fuel tank capacity 73 l (19.28 US gal, 16.06 UK gal)
Length 4978 mm (195.98 in.)
Width 1908 mm (75.12 in.)
Height 1417 mm (55.79 in.)
Wheelbase 2929 mm (115.31 in.)
Drag coefficient (Cd) 0.31
Minimum turning circle 12.2 m (40.03 ft.)
Number of gears 8
Gearbox type Automatic transmission tiptronic

Powertrain & Engine Architecture

The heart of the S7 Sportback (C8) 2.9 TFSI is the EA839 engine, a 2.9-liter twin-turbocharged V6. This engine, also found in various Porsche and other Volkswagen Group vehicles, is renowned for its smooth power delivery and responsiveness. The ‘TFSI’ designation indicates direct fuel injection, contributing to both efficiency and performance. The engine utilizes a sophisticated valvetrain with dual overhead camshafts (DOHC) and four valves per cylinder. Crucially, this version incorporates a 48-volt mild hybrid system. This system employs a belt starter generator (BSG) and a small lithium-ion battery to enable features like extended start-stop operation, coasting with the engine off, and a limited amount of regenerative braking. The eight-speed tiptronic automatic transmission is a torque-converter type, offering smooth and quick shifts. Audi’s quattro all-wheel-drive system is standard, utilizing a self-locking center differential to distribute torque between the front and rear axles, enhancing traction and stability.

Driving Characteristics

The 2.9 TFSI engine, producing 444 horsepower and 442.54 lb-ft of torque, delivers impressive acceleration. The 0-60 mph sprint takes approximately 4.5 seconds, making the S7 a genuinely quick vehicle. The automatic transmission is well-tuned, providing seamless gear changes in both automatic and manual modes. Compared to the standard A7, the S7 offers a noticeably more engaging driving experience, with sharper throttle response and more immediate power delivery. While not as raw or focused as the RS 7, the S7 strikes a good balance between performance and comfort. The quattro all-wheel-drive system provides excellent grip in all weather conditions, inspiring confidence. The gear ratios are optimized for both acceleration and highway cruising, offering a relaxed driving experience at higher speeds.

Equipment & Trim Levels

The S7 Sportback (C8) came generously equipped as standard. Interior features typically included leather upholstery, heated and ventilated front seats, a panoramic sunroof, and a premium sound system. Audi’s Virtual Cockpit, a fully digital instrument cluster, was also standard. Infotainment was handled by a dual-screen MMI touch response system. Optional extras included adaptive cruise control, a head-up display, massaging seats, and various cosmetic enhancements. The S7 trim level itself was relatively consistent, with options packages allowing buyers to customize their vehicle to their preferences. Exterior styling cues included a unique grille, quad exhaust outlets, and subtle body enhancements that distinguished it from the A7.

Chassis & Braking

The S7 Sportback (C8) featured a sophisticated suspension system designed to balance comfort and handling. As standard, it came equipped with independent multi-link suspension at both the front and rear, along with adaptive dampers. Air suspension was often included, providing an even more comfortable ride and the ability to adjust the vehicle’s ride height. Braking performance was excellent, with large ventilated discs at all four corners. Front brakes measured 400mm, while rear brakes were 350mm. ABS (Anti-lock braking system) was standard, along with other electronic stability control systems.

Market Reception & Comparison

The Audi S7 Sportback (C8) 2.9 TFSI V6 was generally well-received by automotive critics. It was praised for its powerful engine, refined interior, and comfortable ride. Compared to its rivals, such as the BMW 5 Series and Mercedes-Benz E-Class, the S7 offered a unique blend of style and performance. Fuel economy, while not exceptional, was reasonable for a vehicle of its size and performance. Reliability reports have been generally positive, although some owners have reported minor issues with the infotainment system. Compared to the higher-performance RS 7, the S7 offered a more accessible price point and a more comfortable driving experience, making it a more practical choice for everyday use.

Legacy

The Audi S7 Sportback (C8) 2.9 TFSI V6 has established itself as a desirable used car. The EA839 engine has proven to be relatively robust, and the quattro all-wheel-drive system provides long-term reliability. The mild hybrid system, while not a game-changer, contributes to improved fuel efficiency and reduced emissions. As the C8 generation ages, these S7 models are becoming increasingly sought after by enthusiasts who appreciate their blend of performance, luxury, and practicality. Maintenance costs are generally in line with other premium German vehicles, requiring regular servicing and attention to detail to ensure continued reliability.

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