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Compare any two cars and get our Virtual Adviser™ opinion

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

compare selected cars
2015. - 2018.
D - Large family car
wagon, 5 door
4 x 4
Badges
Production
Vehicle class
Body style
Wheel drive
Safety
2015. -
D - Large family car
wagon, 5 door
front

Marketing

Dimensons & Outlines

4805 mm
1840 mm
1480 mm
522 liters
1664 liters
62 liters
Length
Width
Height
Boot (min)
Boot (max)
Fuel tank
4855 mm
1860 mm
1470 mm
552 liters
1686 liters
70 liters
2015 Mazda 6 SportBreak
2015 KIA Optima Sportswagon

Engine

Diesel
4 - Inline, 4 valves per cylinder
Turbo
2191 cc
175 hp
420 Nm
Engine
Fuel
Configuration
Aspiration
Displacement
Power
Torque
Diesel
4 - Inline, 4 valves per cylinder
Turbo
1685 cc
141 hp
340 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
manual gearbox - 6 gears
1545 kg
10.2 s
200 km/h
5.2 l/100km
3.8 l/100km
4.4 l/100km
113 g/km

Performance (automatic gearbox)

automatic - 6 gears
1485 kg
9.1 s
209 km/h
6.4 l/100km
4.9 l/100km
5.4 l/100km
143 g/km
Gearbox type
Vehicle weight
Acc. 0-100
Top speed
Cons. (urban)
Cons. (highway)
Cons. (average)
CO2 emissions
dual clutch - 7 gears
1560 kg
11.1 s
200 km/h
5.2 l/100km
4.2 l/100km
4.6 l/100km
120 g/km

Expenses

14400 EUR
Price from
13000 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 5-door wagon body style within the same 'Large family car' segment, the only major difference here really is their wheel drive configuration (4 x 4 for the Mazda and front in the case of the KIA). The first one has a Mazda-engineered powertrain under the hood, a 4-cylinder, 16-valves 175hp unit, while the other one gets its power and torque from a 4-cylinder, 16-valves 141hp engine designed by Hyundai.

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. 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 that fact doesn't break the tie between the two cars. On the other hand, if we'd like to consider vehicle mass in this context too, which we definitely should, the Korean car offers a marginal difference of 4% more metal.

Reliability

I don't like generalizing things when it comes to reliability, although it does seem that Mazda does have a slight advantage, when all the models are taken into account. These are the official statistics, while our visitors describe reliability of Mazda with an average rating of 4.4, and models under the KIA badge with 4.6 out of 5. Some independent research have also placed 6 as average reliability-wise, and Optima is more or less at the same level.That apart, owners of different cars powered by the same engine as the Japanese car rank it on average as 4.3, while the one under the competitor's bonnet gets 5.0 out of 5.

Performance & Fuel economy

Mazda is undoubtly more agile, reaching 100km/h in 1.1 seconds less than its competitor. In addition to that it accelerates all the way to 209 kilometers per hour, 9km/h more than the other car. When it comes to fuel economy the winner has to be the Korean car, averaging around 4.4 liters of fuel per 100 kilometers (64 mpg), in combined cycle. We can't ignore that 23% difference compared to the Japanese car.


Verdict

KIA 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 Korean 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... I believe that, when we take all into account, we have only one winner here - the KIA. Anyway, that's the most objective conclusion I could've came up with and it's based solely on the information found on this website. Aspects such as design, practicality, brand value and driving experience are there for you to measure them out. 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 more than 12.000 different ones in our database.

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