The Audi S7 Sportback (C7) 4.0 TFSI V8 quattro S tronic represents a high-performance iteration of Audi’s luxurious five-door coupe, produced between April 2012 and 2014. Positioned as the performance variant of the A7 Sportback, the S7 aimed to deliver exhilarating driving dynamics combined with the practicality of a liftback design. It was a key model within Audi’s ‘S’ performance line, bridging the gap between the standard A7 and the even more potent RS 7. This specific configuration, featuring the 4.0-liter twin-turbocharged V8 engine paired with the seven-speed S tronic dual-clutch transmission and Audi’s quattro all-wheel-drive system, was the flagship powertrain offered during its production run.
Technical Specifications
| Brand | Audi |
| Model | S7 |
| Generation | S7 Sportback (C7) |
| Type (Engine) | 4.0 TFSI V8 (420 Hp) quattro S tronic |
| Start of production | April, 2012 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Liftback |
| Seats | 4 |
| Doors | 5 |
| Fuel consumption (urban) | 13.4 l/100 km (17.6 US mpg, 21.1 UK mpg, 7.5 km/l) |
| Fuel consumption (extra urban) | 7.5 l/100 km (31.4 US mpg, 37.7 UK mpg, 13.3 km/l) |
| Fuel consumption (combined) | 9.6 l/100 km (24.5 US mpg, 29.4 UK mpg, 10.4 km/l) |
| CO2 emissions | 225 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.7 sec |
| Acceleration 0 – 62 mph | 4.7 sec |
| Acceleration 0 – 60 mph | 4.5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 4.6 kg/Hp, 215.9 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 282.8 Nm/tonne |
| Power | 420 Hp @ 5500-6400 rpm |
| Power per litre | 105.2 Hp/l |
| Torque | 550 Nm @ 1400-5200 rpm (405.66 lb.-ft. @ 1400-5200 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | CEUC |
| Engine displacement | 3993 cm3 (243.67 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 84.5 mm (3.33 in.) |
| Piston Stroke | 89 mm (3.5 in.) |
| Compression ratio | 10.1:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 8.3 l (8.77 US qt | 7.3 UK qt) |
| Coolant | 12 l (12.68 US qt | 10.56 UK qt) |
| Kerb Weight | 1945 kg (4287.99 lbs.) |
| Max. weight | 2555 kg (5632.81 lbs.) |
| Max load | 610 kg (1344.82 lbs.) |
| Trunk (boot) space – minimum | 535 l (18.89 cu. ft.) |
| Trunk (boot) space – maximum | 1390 l (49.09 cu. ft.) |
| Fuel tank capacity | 75 l (19.81 US gal | 16.5 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (8%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load with brakes (12%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 85 kg (187.39 lbs.) |
| Length | 4980 mm (196.06 in.) |
| Width | 1911 mm (75.24 in.) |
| Width including mirrors | 2139 mm (84.21 in.) |
| Height | 1408 mm (55.43 in.) |
| Wheelbase | 2916 mm (114.8 in.) |
| Front track | 1641 mm (64.61 in.) |
| Rear (Back) track | 1632 mm (64.25 in.) |
| Front overhang | 941 mm (37.05 in.) |
| Rear overhang | 1123 mm (44.21 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.9 m (39.04 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 7 gears, automatic transmission S tronic |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent on trapezoidal lever |
| 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 | 255/40 R19 |
| Wheel rims size | 8.5J x 19 |
Powertrain & Engine Architecture
The heart of the S7 Sportback (C7) 4.0 TFSI is the CEUC engine, a 3,993 cc (243.67 cu. in.) naturally aspirated V8 engine. This engine utilizes direct fuel injection and is equipped with two turbochargers, one for each bank of cylinders, providing a broad torque curve and minimal turbo lag. The engine’s valvetrain employs double overhead camshafts (DOHC) with four valves per cylinder. The 4.0 TFSI produces 420 horsepower at 5,500-6,400 rpm and 405.66 lb.-ft. of torque between 1,400 and 5,200 rpm. This power is delivered to all four wheels via Audi’s quattro all-wheel-drive system. The S tronic seven-speed dual-clutch transmission offers rapid and smooth gear changes, contributing to the car’s impressive acceleration. The transmission features a sophisticated control unit that adapts to driving style and conditions.
Driving Characteristics
The S7 4.0 TFSI delivers a refined yet potent driving experience. The combination of the powerful V8 engine, the quick-shifting S tronic transmission, and the quattro all-wheel-drive system results in a 0-60 mph time of approximately 4.5 seconds. The engine provides ample power for effortless overtaking and cruising at high speeds. The S tronic transmission’s gear ratios are optimized for both acceleration and fuel efficiency. Compared to the standard A7’s engines, the S7 offers significantly more performance. While the A7’s 2.8-liter V6 focused on efficiency and comfort, and the 3.0-liter TDI prioritized fuel economy, the S7 was designed for drivers seeking a more engaging and dynamic experience. The S7’s suspension is tuned for a balance between comfort and handling, providing a stable and controlled ride even when pushed hard.
Equipment & Trim Levels
The S7 Sportback 4.0 TFSI came generously equipped as standard. Interior features included leather upholstery, heated and ventilated front sport seats, a multi-function steering wheel, and a premium sound system. Standard exterior features included 19-inch alloy wheels, S-specific body styling, and LED headlights. Optional extras included a panoramic sunroof, adaptive cruise control, a head-up display, and advanced driver-assistance systems. The interior trim was typically finished with brushed aluminum or carbon fiber accents, enhancing the sporty and luxurious ambiance.
Chassis & Braking
The S7 Sportback featured a sophisticated chassis designed to handle the increased power output. The suspension utilized independent multi-link setups at both the front and rear, providing excellent ride quality and handling precision. The S7 was equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control (ESC) system was calibrated to allow for a more dynamic driving experience while still maintaining a high level of safety. The steering system was a speed-sensitive rack-and-pinion setup with electric power assistance.
Market Reception & Comparison
The Audi S7 Sportback 4.0 TFSI was generally well-received by automotive critics. It was praised for its powerful engine, refined interior, and versatile liftback design. Critics noted that the S7 offered a compelling alternative to traditional sports sedans and coupes. Compared to rivals like the BMW 6 Series Gran Coupe and the Mercedes-Benz CLS, the S7 was often lauded for its more understated styling and its advanced technology. Fuel economy was considered reasonable for a high-performance vehicle of its size and capability, averaging around 24.5 US mpg in combined driving. Reliability reports have been generally positive, with owners reporting few major issues.
Legacy
The Audi S7 Sportback (C7) 4.0 TFSI remains a desirable vehicle in the used car market. The 4.0 TFSI engine is known for its durability and performance, although regular maintenance is essential. The S tronic transmission is generally reliable, but it’s important to ensure that it has been serviced according to Audi’s recommendations. The S7’s combination of luxury, performance, and practicality has ensured its continued appeal to enthusiasts seeking a unique and rewarding driving experience. The C7 generation S7 established a strong foundation for subsequent S7 models, solidifying Audi’s position in the high-performance luxury segment.
