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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 hybrid 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 (4 x 4 for the Infiniti and front in the case of the Ford). The first one has a Nissan-engineered powertrain under the hood, a 6-cylinder, 24-valves 364hp unit, while the other one gets its power and torque from a 4-cylinder, 16-valves 187hp 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 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 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. Furthermore, taking kerb weight as an important factor into account, the Japanese car offers a marginal difference of 9% more metal.Reliability
I don't like generalizing things when it comes to reliability, although it does seem that Ford does have a slight advantage, when all the models are taken into account. That's the official data, while our visitors describe reliability of Infiniti with an average rating of 4.5, and models under the Ford badge with 4.4 out of 5. The same official information place Q50 as average reliability-wise, and Mondeo is more or less at the same level.Above it all, drivers of cars with the same engine as the Japanese car rank it on average as 3.0 out of 5, exactly the same as the other one.Performance & Fuel economy
Infiniti is way more agile, reaching 100km/h in 3.8 seconds less than its competitor. In addition to that it accelerates all the way to 250 kilometers per hour, 63km/h more than the other car. When it comes to fuel economy an obvious choice would be the American car, averaging around 4.2 liters of fuel per 100 kilometers (67 mpg), in combined cycle. That's 62% difference compared to the Japanese car!
Ford 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 Japanese car offers slightly better overall protection and takes the lead. It all continues in the same direction, with Infiniti outracing its opponent in any situation possible, making it better choice for boy racers. It does come at a cost though, and that's the fuel consumption... No mistake, whatever you decide here, but I'd still go for the Ford. Nevertheless, let's not forget that people have different preferences and needs, so what really counts is your personal feel. I'm only here to help. 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.