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Dimensons & Outlines
Engine
1.8 Z18XE
Performance (manual gearbox)
Performance (automatic gearbox)
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Virtual Adviser's™ opinion
Two significantly similar cars, no doubt about that. Still, each one has something different to offer. Having both cars powered by petrol engines and utilizing the 5-door wagon body style within the same 'Small family car' segment, the only major difference here really is their wheel drive configuration (4 x 4 for the Audi and front in the case of the Opel). The first one has a Audi-engineered powertrain under the hood, a 4-cylinder, 20-valves 180hp unit, while the other one gets its power and torque from a 4-cylinder, 16-valves 125hp engine designed by Opel.
SafetyA 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. That aside, let's consider some other aspects which affect safety. Both vehicles belong to the small family 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, Audi A3 offers a marginal difference of 9% more metal.
ReliabilityI don't like generalizing things when it comes to reliability, although it does seem that Opel 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 Audi, as well as Opel, with the same average rating of 4.2 out of 5. Independent research findings rank A3 as average reliability-wise, and Astra is more or less at the same level.We should definitely mention that owners of cars with the same powertrain as Audi A3 rank it on average as 4.8, while the one under the competitor's bonnet gets 4.7 out of 5.
Performance & Fuel economyAudi is undoubtly more agile, reaching 100km/h in 2.5 seconds less than its competitor. In addition to that it accelerates all the way to 226 kilometers per hour, 26km/h more than the other car. When it comes to fuel economy the winner has to be Astra, averaging around 8 liters of fuel per 100 kilometers (35 mpg), in combined cycle. We can't ignore that 16% difference compared to Audi A3.
Verdict
Opel 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, Audi A3 offers slightly better overall protection and takes the lead. It all continues in the same direction, with Audi 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. 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™, out of 12.000+ vehicles we currently have in our database.