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Car #1
Make
Model
Variant
Engine
Car #2
Make
Model
Variant
Engine

compare selected cars
2007. - 2010.
F - Executive car
sedan, 4 door
4 x 4
Badges
Production
Vehicle class
Body style
Wheel drive
Safety
2005. - 2009.
F - Executive car
sedan, 4 door
rear

Dimensons & Volumes

5062 mm
1894 mm
1444 mm
500 liters
500 liters
90 liters
Length
Width
Height
Boot (min)
Boot (max)
Fuel tank
5076 mm
1871 mm
1473 mm
560 liters
560 liters
90 liters

Engine

Diesel
8 - V config, 4 valves per cylinder
Turbo
4134 cc
326 hp
650 Nm
Engine
Fuel
Configuration
Aspiration
Displacement
Power
Torque
Mercedes Benz
4.0 OM629 DE40 LA HP
Diesel
8 - V config, 4 valves per cylinder
Bi-Turbo
3996 cc
316 hp
730 Nm

Performance (manual gearbox)

 
kg
s
km/h
l/100km
l/100km
l/100km
g/km
Gearbox type
Vehicle weight
Acc. 0-100
Top speed
Cons. (urban)
Cons. (highway)
Cons. (average)
CO2 emissions
 
kg
s
km/h
l/100km
l/100km
l/100km
g/km

Performance (automatic gearbox)

automatic - 6 gears
1945 kg
5.9 s
250 km/h
13.3 l/100km
7.2 l/100km
9.4 l/100km
253 g/km
Gearbox type
Vehicle weight
Acc. 0-100
Top speed
Cons. (urban)
Cons. (highway)
Cons. (average)
CO2 emissions
automatic - 7 gears
1990 kg
6.0 s
250 km/h
13.0 l/100km
7.2 l/100km
9.4 l/100km
247 g/km

Expenses

10750 EUR
Price from
8900 EUR

Virtual Adviser's™ opinion

Overview

Two significantly similar cars, no doubt about that. Still, each one has something different to offer. Having both cars powered by diesel engines and utilizing the 4-door sedan body style within the same 'Executive car' segment, the only major difference here really is their wheel drive configuration (4 x 4 for the Audi and rear in the case of the Mercedes Benz). The first one has a Audi-engineered powertrain under the hood, a 8-cylinder, 32-valves 326hp unit, while the other one gets its power and torque from a 8-cylinder, 32-valves 316hp engine designed by Mercedes Benz.

Safety

Unfortunatelly, neither of the two vehicles was submitted to the European New Car Assessment Programme (Euro NCAP) testing. This makes it virtually impossible for me to pick one over the other and I'm generally against buying such cars as the safety should really always come first. Moving further on, let's take a closer look at some additional safety-related facts. Both vehicles belong to the executive car segment, which is generally a fortune safety-wise, but it doesn't do much to help us decide between the two. On the other hand, taking kerb weight as an important factor into account, Mercedes Benz S offers a marginal difference of 2% more metal.

Reliability

Manufacturers have been building their reliability reputation for decades now and, generally speaking, it appears that both brands display similar results in faults and breakdowns, when all the models are taken into account. These are the official statistics, while our visitors describe reliability of Audi with an average rating of 4.2, and models under the Mercedes Benz badge with 4.4 out of 5. Some independent research have also placed A8 50% below average, and S is more or less at the same level.Above it all, drivers of cars with the same engine as Audi A8 rank it on average as 4.5, while the one under the competitor's bonnet gets 3.0 out of 5.

Performance & Fuel economy

Audi is a bit more agile, reaching 100km/h in 0.1 seconds less than its competitor. Still, it lacks the power to win the top speed competition, topping at 250 kilometers per hour, exactly the same as the other car does. When it comes to fuel economy things look pretty much the same for both cars, averaging around 9.4 liters of fuel per 100 kilometers (30 mpg), in combined cycle.

Verdict

Audi appears just a bit more reliable, although the difference is truly marginal. The most important thing when deciding between any two vehicles should always be safety, both passive and active. In my opinion, everything taken into account, Mercedes Benz S offers slightly better overall protection and takes the lead. From there things take a different direction, with Audi offering somewhat better performance, just enough to call it quicker. Fuel consumption is more or less the same. It's really tough to make a final decision here, but if I'd need to, I'd say Audi. In any case that's my personal view, built upon all the data available to me. What should decide here though is the way you feel about the two vehicles, and I hope you'll find my guidelines useful in the process. In case you have two minutes to spare I invite you to define your needs, desires and budget and see which car would be chosen by the virtual adviser, out of 12.000+ vehicles we currently have in our database.

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