The Audi S8 (D3, facelifted in 2007) with the 5.2 FSI V10 engine, producing 450 horsepower, represents the pinnacle of performance for the second-generation S8. Introduced as a mid-cycle refresh, this variant aimed to elevate the S8’s status within the luxury performance sedan segment, competing directly with models like the BMW 7 Series and Mercedes-Benz S-Class. Production spanned from 2007 to August 2010, solidifying its place as a relatively short-lived but highly desirable iteration of Audi’s flagship saloon. This model built upon the D3 platform (shared with the A8) and incorporated significant engine and technological upgrades.
Technical Specifications
| Brand | Audi |
| Model | S8 |
| Generation | S8 (D3, facelift 2007) |
| Type (Engine) | 5.2 FSI V10 (450 Hp) quattro Tiptronic |
| Start of production | 2007 |
| End of production | August, 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 19.5 l/100 km (12.1 US mpg, 14.5 UK mpg, 5.1 km/l) |
| Fuel consumption (economy) – extra urban | 9.5 l/100 km (24.8 US mpg, 29.7 UK mpg, 10.5 km/l) |
| Fuel consumption (economy) – combined | 13.2 l/100 km (17.8 US mpg, 21.4 UK mpg, 7.6 km/l) |
| CO2 emissions | 314 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.1 sec |
| Acceleration 0 – 62 mph | 5.1 sec |
| Acceleration 0 – 60 mph | 4.8 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 4.3 kg/Hp, 232 Hp/tonne |
| Weight-to-torque ratio | 3.6 kg/Nm, 278.4 Nm/tonne |
| Power | 450 Hp @ 7000 rpm |
| Power per litre | 86.5 Hp/l |
| Torque | 540 Nm @ 3500 rpm (398.28 lb.-ft. @ 3500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | BSM |
| Engine displacement | 5204 cm3 (317.57 cu. in.) |
| Number of cylinders | 10 |
| Engine configuration | V-engine |
| Cylinder Bore | 84.5 mm (3.33 in.) |
| Piston Stroke | 92.8 mm (3.65 in.) |
| Compression ratio | 12.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 10 l (10.57 US qt | 8.8 UK qt) |
| Coolant | 15.6 l (16.48 US qt | 13.73 UK qt) |
| Kerb Weight | 1940 kg (4276.97 lbs.) |
| Max. weight | 2540 kg (5599.74 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space – minimum | 500 l (17.66 cu. ft.) |
| Fuel tank capacity | 90 l (23.78 US gal | 19.8 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (8%) | 2300 kg (5070.63 lbs.) |
| Permitted trailer load with brakes (12%) | 2300 kg (5070.63 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 95 kg (209.44 lbs.) |
| Length | 5062 mm (199.29 in.) |
| Width | 1897 mm (74.69 in.) |
| Height | 1424 mm (56.06 in.) |
| Wheelbase | 2944 mm (115.91 in.) |
| Front track | 1620 mm (63.78 in.) |
| Rear (Back) track | 1607 mm (63.27 in.) |
| Ride height (ground clearance) | 120 mm (4.72 in.) |
| Drag coefficient (Cd) | 0.286 |
| Minimum turning circle (turning diameter) | 12.1 m (39.7 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, automatic transmission Tiptronic |
| 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 |
| Tires size | 265/35 R20 |
| Wheel rims size | 9J x 20 |
Powertrain & Engine Architecture
The heart of the 2007 facelifted S8 is the BSM engine – a naturally aspirated 5.2-liter V10. This engine is a significant departure from the earlier S8’s V8, offering substantially more power and a unique engine note. The engine utilizes a direct fuel injection (FSI) system, contributing to its efficiency and power output. The valvetrain employs double overhead camshafts (DOHC) with four valves per cylinder, optimizing airflow for enhanced performance. Paired exclusively with a six-speed Tiptronic automatic transmission, the BSM engine delivers power to all four wheels via Audi’s quattro all-wheel-drive system. The Tiptronic transmission allows for both fully automatic operation and manual gear selection, providing the driver with a degree of control.
Driving Characteristics
The 5.2 FSI V10 engine, coupled with the Tiptronic transmission, delivers a refined yet potent driving experience. Acceleration from 0-60 mph takes approximately 4.8 seconds, and the car is electronically limited to a top speed of 155 mph. While the Tiptronic transmission isn’t as quick-shifting as some dual-clutch transmissions found in competitors, it provides smooth and seamless gear changes. The quattro all-wheel-drive system ensures excellent traction in all weather conditions, enhancing stability and confidence. Compared to a hypothetical manual version (which was never offered), the Tiptronic prioritizes comfort and ease of use over outright performance. The automatic transmission’s programming is geared towards smooth cruising, and while manual shifts are possible, they lack the immediacy of a traditional manual gearbox.
Equipment & Trim Levels
The 2007 S8 came standard with a comprehensive array of luxury and technology features. Interior appointments included premium leather upholstery, wood trim, and power-adjustable, heated, and ventilated front seats. Standard technology included a navigation system, a premium sound system, and a multi-function steering wheel. Optional extras included adaptive cruise control, a rear-seat entertainment system, and upgraded leather packages. The S8 occupied the top-tier position in Audi’s A8 lineup, offering a more luxurious and performance-oriented experience than the standard A8 models.
Chassis & Braking
The S8’s chassis features an independent multi-link suspension at the front and an independent suspension on a trapezoidal lever at the rear, providing a comfortable ride while maintaining precise handling. The suspension is tuned to balance comfort and performance, offering a more engaging driving experience than the standard A8. Braking duties are handled by ventilated discs on all four wheels, coupled with Audi’s ABS anti-lock braking system. The braking system provides ample stopping power and stability, even under hard braking conditions.
Market Reception & Comparison
The 2007 S8 with the 5.2 FSI V10 engine was generally well-received by automotive critics. Praise was directed towards its powerful engine, luxurious interior, and refined driving experience. However, some critics noted the relatively high fuel consumption and the Tiptronic transmission’s lack of responsiveness compared to newer automatic transmissions. Compared to the earlier V8-powered S8, the V10 model offered a significant performance upgrade, but at a higher price point. Against competitors like the BMW 750i and Mercedes-Benz S63 AMG, the S8 offered a compelling combination of luxury, performance, and technology.
Legacy
The BSM 5.2 FSI V10 engine, while complex, has proven to be relatively reliable when properly maintained. Common issues include carbon buildup on the intake valves (a characteristic of direct-injection engines) and occasional oil leaks. The Tiptronic transmission, while generally durable, can require expensive repairs if it fails. Today, the 2007-2010 S8 represents a desirable used car option for those seeking a high-performance luxury sedan. Its unique V10 engine and sophisticated technology continue to appeal to enthusiasts, and well-maintained examples command a premium in the used car market. The S8’s blend of performance, luxury, and all-weather capability ensures its continued relevance in the modern automotive landscape.
