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Audi S8: generations D2–D5, engines and what to know before buying
The Audi S8 is the sportiest version of the A8, produced since 1996. It combines the comfort of a luxury saloon with the dynamics and all-wheel drive of a supercar. We look at four generations, their engines, and what to check when buying a used S8.
The S8 in brief
The S8 is a sleek, high-performance luxury saloon. Compared to the standard A8, it features a more powerful engine, sportier suspension, brakes, and subtle exterior details, so many passers-by won't notice just how powerful this car is.
The first-generation S8 stood out with its lightweight aluminium body, resulting in better dynamics and fuel efficiency than its rivals. However, it's a luxury car, so maintenance costs more than a typical hatchback.
Which generation to choose
The D2 (1996–2002) and D3 (2006–2010) are the most accessible generations. The D3 has a distinctive V10 engine, but its maintenance and repairs can be very expensive.
The D4 (2012–2017) boasts more modern tech, a twin-turbo V8 engine, and better equipment. It strikes a good balance between modernity and cost in the used market.
The D5 (from 2019) is the latest generation with a modern design, digital cabin, and advanced driver-assistance systems. It's the most expensive, but also the most technologically advanced.
Engines and gearboxes
The D2 has a 4.2-litre V8 (around 340 hp), the D3 a 5.2-litre V10 (around 450 hp), and the D4 a 4.0-litre twin-turbo V8 (around 520 hp, or around 600 hp in the Plus version). The D5 features the same 4.0-litre twin-turbo V8 with around 570 hp and a mild hybrid system.
Transmissions are all tiptronic automatics: earlier generations have fewer gears, while the D4 and D5 have 8-speed units. All versions come with quattro all-wheel drive.
What to check when buying a used S8
First, check the service history. Powerful Audi engines demand high-quality oil and timely servicing, and repairs can be expensive.
Test the air suspension: the car should rise and lower smoothly, and the suspension should operate flawlessly. Also, check the automatic transmission, quattro system, brakes, and tyres, as sporty versions wear them out faster.
Check all the interior features: electric seats, climate control, infotainment, cameras, and driver-assistance systems. The more features, the more potential issues, so test everything.
Trim levels
Trim levels vary by market and year; below are the main versions.
S8
D2–D5The standard sporty trim with a powerful engine and quattro all-wheel drive.
- Sport-tuned suspension and brakes
- Often includes a leather interior and plenty of comfort features
- Quattro all-wheel drive
S8 plus
D4The more powerful D4 generation version.
- Around 600 hp twin-turbo V8
- Often — ceramic brakes
- Unique exterior and interior styling
S8 D5
from 2019The latest version with modern equipment.
- Around 570 hp V8 with a mild hybrid
- Digital cabin and advanced driver-assistance systems
- Often — active suspension
Generation comparison
| D3 5.2 V10 | D4 4.0 TFSI | D5 4.0 TFSI | |
|---|---|---|---|
| Who it's for | For enthusiasts of the distinctive V10 | Modern dynamics | Latest technology |
| Power (approx.) | 450 hp | 520–600 AG | 570 AG |
| Gearbox | Quattro | Quattro | Quattro |
| Price in the used market (relatively) | €€ | €€€ | €€€ |
If you're after an affordable S8, opt for a D3 or D4 with a comprehensive service history. If budget allows, the D5 is the most advanced generation.
Pros
- A very powerful and high-quality gearbox
- Quattro four-wheel drive
- Luxurious, quiet, and comfortable interior
- A subdued design that looks like a typical A8
Cons
- Very expensive maintenance and parts
- High fuel consumption
- Air suspension and electronics repairs can be costly
Frequently asked questions
What's the difference between the S8 and A8?
The S8 is the sporty version of the A8, featuring a more powerful engine, sportier suspension and brakes, and unique details, while the A8 offers more economical engines.
Which S8 generation is the best?
For most buyers, the D4 is a good compromise between power, equipment, and price. The D5 is the most advanced, but also the most expensive.
Is the S8 suitable for daily use?
Yes, it's comfortable and quiet, but running costs, maintenance, and insurance are high.
Updated 2026-10-17 · Trim levels and equipment vary by market and model year — check the equipment of the specific car. · Translated automatically
