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

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2004. - 2007.
D - Large family car
sedan, 4 door
rear
Badges
Production
Vehicle class
Body style
Wheel drive
Safety
2005. - 2008.
D - Large family car
sedan, 4 door
rear

Dimensons & Outlines

4526 mm
1728 mm
1426 mm
455 liters
455 liters
62 liters
Length
Width
Height
Boot (min)
Boot (max)
Fuel tank
4520 mm
1817 mm
1421 mm
460 liters
460 liters
61 liters
2004 Mercedes Benz C
2005 BMW 3 Series

Engine

Mercedes Benz
2.1 OM646 DE22 LA
Diesel
4 - Inline, 4 valves per cylinder
Turbo
2148 cc
150 hp
340 Nm
Engine
Fuel
Configuration
Aspiration
Displacement
Power
Torque
Diesel
4 - Inline, 4 valves per cylinder
Turbo
1995 cc
143 hp
320 Nm

Performance (manual gearbox)

manual gearbox - 6 gears
1440 kg
10.1 s
224 km/h
8.6 l/100km
5.1 l/100km
6.4 l/100km
169 g/km
Gearbox type
Vehicle weight
Acc. 0-100
Top speed
Cons. (urban)
Cons. (highway)
Cons. (average)
CO2 emissions
manual gearbox - 6 gears
1405 kg
9.3 s
210 km/h
5.7 l/100km
4.1 l/100km
4.7 l/100km
123 g/km

Performance (automatic gearbox)

automatic - 5 gears
1460 kg
10.3 s
218 km/h
9.0 l/100km
5.4 l/100km
6.8 l/100km
178 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

Expenses

2000 EUR
Price from
6500 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 large family car segment and utilize the same 4-door sedan body style and the rear wheel drive system, it all comes up to the specific diesel engine choice they offer. The first one has a Mercedes Benz-engineered powertrain under the hood, a 4-cylinder, 16-valves 150hp unit, while the other one gets its power and torque from a 4-cylinder, 16-valves 143hp engine designed by BMW.

Safety

A starting point here would be to take a look at the results from European New Car Assessment Programme (Euro NCAP) tests which were performed on both of the cars, with the same number of safety stars gained in the process. Moving further on, let's take a closer look at some additional safety-related facts. Both vehicles belong to the large family car segment, which is generally a good thing safety-wise, still it doesn't help us solve our dilemma, does it? Furthermore, if we'd like to consider vehicle mass in this context too, which we definitely should, Mercedes Benz C offers a marginal difference of 2% 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, at least on all of the models level. These are the official statistics, 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. The same official information place C as average reliability-wise, and 3 Series is more or less at the same level.Above it all, drivers of cars with the same engine as Mercedes Benz C rank it on average as 4.9, while the one under the competitor's bonnet gets 4.2 out of 5.

Performance & Fuel economy

BMW is a bit more agile, reaching 100km/h in 0.8 seconds less than its competitor. Still, it lacks the power to win the top speed competition, topping at 210 kilometers per hour, 14km/h less than the other car. When it comes to fuel economy the winner has to be 3 Series, averaging around 4.7 liters of fuel per 100 kilometers (60 mpg), in combined cycle. We can't ignore that 36% difference compared to Mercedes Benz C.


Verdict

Mercedes Benz 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 C offers slightly better overall protection and takes the lead. From there things take a different direction, with BMW offering somewhat better performance, just enough to call it quicker. To make things even better, it consumps less fuel! It's not difficult to say then that if I'd need to make a choice, it would definitely be the BMW. 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. Also, you could use the oportunity to find out which car, everything taken into account, would be the perfect choice for you in the eyes of the virtual adviser, among more than 12.000 different ones in our database.

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