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

compare selected cars
2003. - 2005.
D - Large family car
hatchback, 5 door
front
Badges
Production
Vehicle class
Body style
Wheel drive
Safety
2002. - 2005.
D - Large family car
hatchback, 5 door
front

Marketing

Dimensons & Outlines

4636 mm
1798 mm
1466 mm
365 liters
1410 liters
61 liters
Length
Width
Height
Boot (min)
Boot (max)
Fuel tank
4670 mm
1780 mm
1435 mm
492 liters
1662 liters
64 liters
2003 Opel Signum
2002 Mazda 6 Sport

Engine

Diesel
4 - Inline, 2 valves per cylinder
Turbo
1910 cc
120 hp
280 Nm
Engine
Fuel
Configuration
Aspiration
Displacement
Power
Torque
Diesel
4 - Inline, 4 valves per cylinder
Turbo
1998 cc
121 hp
310 Nm

Performance (manual gearbox)

manual gearbox - 6 gears
1515 kg
12.2 s
191 km/h
7.7 l/100km
5.0 l/100km
6.0 l/100km
162 g/km
Gearbox type
Vehicle weight
Acc. 0-100
Top speed
Cons. (urban)
Cons. (highway)
Cons. (average)
CO2 emissions
manual gearbox - 5 gears
1410 kg
11.0 s
196 km/h
8.3 l/100km
5.5 l/100km
6.5 l/100km
179 g/km

Performance (automatic gearbox)

automatic - 5 gears
1560 kg
11.8 s
195 km/h
10.6 l/100km
5.8 l/100km
7.6 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

1500 EUR
Price from
900 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 5-door hatchback body style and the front wheel drive system, it all comes up to the specific diesel engine choice they offer. The first one has a FIAT-engineered powertrain under the hood, a 4-cylinder, 8-valves 120hp unit, while the other one gets its power and torque from a 4-cylinder, 16-valves 121hp engine designed by Mazda.

Safety

Both vehicles got tested by European New Car Assessment Programme (Euro NCAP), with the same number of safety stars gained in the process. 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, still it doesn't help us solve our dilemma, does it? Furthermore, taking kerb weight as an important factor into account, the German car offers a marginal difference of 7% more metal.

Reliability

Manufacturers have been building their reliability reputation for decades now and, generally speaking, it appears that Mazda does have a slight advantage, at least on all of the models level. These are the results of an independent reasearch, while our visitors describe reliability of Opel with an average rating of 4.2, and models under the Mazda badge with 4.4 out of 5. Some independent research have also placed Signum 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 4.5, while the one under the competitor's bonnet gets 4.4 out of 5.

Performance & Fuel economy

Mazda is undoubtly more agile, reaching 100km/h in 1.2 seconds less than its competitor. In addition to that it accelerates all the way to 196 kilometers per hour, 5km/h more than the other car. When it comes to fuel economy things look pretty much the same for both cars, averaging around 6.3 liters of fuel per 100 kilometers (45 mpg), in combined cycle.


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. From there things take a different direction, with Mazda being considerably quicker, thus putting more smile on driver's face. It does come at a cost though, and that's the fuel consumption... It's really tough to make a final decision here, but if I'd need to, I'd say Opel. 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, among thousands of similar, yet so different vehicles.

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