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

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2006. - 2010.
S - Sports car
coupe, 2 door
rear
Badges
Production
Vehicle class
Body style
Wheel drive
Safety
2007. - 2011.
S - Sports car
coupe, 2 door
rear

Dimensons & Outlines

5065 mm
1871 mm
1418 mm
490 liters
490 liters
90 liters
Length
Width
Height
Boot (min)
Boot (max)
Fuel tank
4820 mm
1855 mm
1374 mm
450 liters
450 liters
70 liters
2006 Mercedes Benz CL
2007 BMW 6 Series

Engine

Mercedes Benz
5.5 M273 E55
Petrol
8 - V config, 4 valves per cylinder
Nat. Asp.
5461 cc
388 hp
530 Nm
Engine
Fuel
Configuration
Aspiration
Displacement
Power
Torque
Petrol
10 - V config, 4 valves per cylinder
Nat. Asp.
4999 cc
507 hp
520 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 - 7 gears
1895 kg
5.4 s
250 km/h
18.1 l/100km
8.5 l/100km
12.1 l/100km
288 g/km
Gearbox type
Vehicle weight
Acc. 0-100
Top speed
Cons. (urban)
Cons. (highway)
Cons. (average)
CO2 emissions
automatic - 7 gears
1710 kg
4.6 s
250 km/h
22.7 l/100km
10.2 l/100km
14.8 l/100km
357 g/km

Expenses

15500 EUR
Price from
14950 EUR

Virtual Adviser's™ opinion

Overview

Well, these are two pretty similar cars we have here! It's only details that could potentially make the difference. Considering they both belong to the sports car segment and utilize the same 2-door coupe body style and the rear wheel drive system, it all comes up to the specific petrol engine choice they offer. The first one has a Mercedes Benz-engineered powertrain under the hood, a 8-cylinder, 32-valves 388hp unit, while the other one gets its power and torque from a 10-cylinder, 40-valves 507hp engine designed by BMW.

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. Still, apart from the official crash test results there are other things we need to be aware of. Both vehicles belong to the sports car segment, which is generally classifying them somewhere in the middle safety-wise, but it doesn't do much to help us decide between the two. Furthermore, taking kerb weight as an important factor into account, Mercedes Benz CL offers a considerable difference of 11% more metal.

Reliability

Reliability is not the best thing to consider on the make level, but it is worth mentioning that both brands display similar results in faults and breakdowns, all the models observed together. That's the official data, while our visitors describe reliability of Mercedes Benz with an average rating of 4.4, and models under the BMW badge with 4.3 out of 5. Unfortunatelly, I don't have enough insight that would allow me to comment in more details on the specific models level. That apart, owners of different cars powered by the same engine as Mercedes Benz CL rank it on average as 5.0, while the one under the competitor's bonnet gets 1.0 out of 5.

Performance & Fuel economy

BMW is a bit more agile, reaching 100km/h in 0.8 seconds less than its competitor. In addition to that it accelerates all the way to 250 kilometers per hour, exactly the same as the other car does. When it comes to fuel economy an obvious choice would be Mercedes Benz CL, averaging around 12.1 liters of fuel per 100 kilometers (23 mpg), in combined cycle. That's 22% difference compared to 6 Series!


Verdict

Mercedes Benz is apparently more reliable, not too much, but just enough. 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 CL offers significantly better overall protection, taking the lead here. From there things take a different direction, with BMW offering somewhat better performance, just enough to call it quicker. It does come at a cost though, and that's the fuel consumption... All together, there's not much more to say, in this case I wouldn't even consider anything but Mercedes Benz. Nevertheless, let's not forget that people have different preferences and needs, so what really counts is your personal feel. I'm only here to help. 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, among thousands of similar, yet so different vehicles.

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