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

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

Dimensons & Outlines

4520 mm
1817 mm
1421 mm
460 liters
460 liters
61 liters
Length
Width
Height
Boot (min)
Boot (max)
Fuel tank
4670 mm
1780 mm
1435 mm
501 liters
501 liters
64 liters
2005 BMW 3 Series
2005 Mazda 6

Engine

Diesel
4 - Inline, 4 valves per cylinder
Turbo
1995 cc
143 hp
320 Nm
Engine
Fuel
Configuration
Aspiration
Displacement
Power
Torque
Diesel
4 - Inline, 4 valves per cylinder
Turbo
1998 cc
143 hp
360 Nm

Performance (manual gearbox)

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
Gearbox type
Vehicle weight
Acc. 0-100
Top speed
Cons. (urban)
Cons. (highway)
Cons. (average)
CO2 emissions
manual gearbox - 6 gears
1415 kg
9.5 s
205 km/h
7.5 l/100km
5.1 l/100km
6.0 l/100km
165 g/km

Performance (automatic 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

Expenses

6500 EUR
Price from
1600 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 'Large family car' segment, the only major difference here really is their wheel drive configuration (rear for the BMW and front in the case of the Mazda). The first one has a BMW-engineered powertrain under the hood, a 4-cylinder, 16-valves 143hp unit, while the other one gets its power and torque from a 4-cylinder, 16-valves 143hp engine designed by Mazda.

Safety

The first thing to look into here would be the results from European New Car Assessment Programme (Euro NCAP) tests performed on the two cars. Good thing is that both vehicles got tested, with the BMW being a slightly better choice apparently. Still, apart from the official crash test results there are other things we need to be aware of. Both vehicles belong to the large family car segment, which is generally a good thing 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, the Japanese car offers a marginal difference of 1% more metal.

Reliability

I don't like generalizing things when it comes to reliability, although it does seem that Mazda as a brand displays somewhat better results, when all the models are taken into account. That's the official data, while our visitors describe reliability of BMW with an average rating of 4.3, and models under the Mazda badge with 4.5 out of 5. Some independent research have also placed 3 Series as average reliability-wise, and 6 is more or less at the same level.Above it all, drivers of cars with the same engine as the German car rank it on average as 4.3, while the one under the competitor's bonnet gets 4.1 out of 5.

Performance & Fuel economy

BMW is a bit more agile, reaching 100km/h in 0.2 seconds less than its competitor. In addition to that it accelerates all the way to 210 kilometers per hour, 5km/h more than the other car. When it comes to fuel economy the winner has to be the German car, averaging around 4.7 liters of fuel per 100 kilometers (60 mpg), in combined cycle. We can't ignore that 28% difference compared to the Japanese car.


Verdict

Mazda 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, the German car offers slightly better overall protection and takes the lead. It all continues in the same direction, with BMW offering somewhat better performance, just enough to call it quicker. To make things even better, it consumps less fuel! All together, there's not much more to say, in this case I wouldn't even consider anything but 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 thousands of similar, yet so different vehicles.

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