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 MPV body style within the same 'MPV' segment, the only major difference here really is their wheel drive configuration (rear for the Mercedes Benz and front in the case of the Seat). The first one has a Mercedes Benz-engineered powertrain under the hood, a 6-cylinder, 24-valves 224hp unit, while the other one gets its power and torque from a 4-cylinder, 16-valves 170hp engine designed by Volkswagen.

The fact that the Seat got tested by the European New Car Assessment Programme (Euro NCAP), while the other contender didn't, puts it sky-high safety-wise, in my eyes at least. That aside, let's consider some other aspects which affect safety. Both vehicles belong to the mpv segment, which is generally a good thing safety-wise, but it doesn't do much to help us decide between the two.

Reliability is not the best thing to consider on the make level, but it is worth mentioning that Seat does have a slight advantage, all the models observed together. That's the official data, while our visitors describe reliability of Mercedes Benz, as well as Seat, with the same average rating of 4.4 out of 5. The same official information place R as average reliability-wise, and Altea is more or less at the same level.We should definitely mention that owners of cars with the same powertrain as the German car rank it on average as 4.5, while the one under the competitor's bonnet gets 4.2 out of 5.

Both of the cars accelerate exactly the same, so we couldn't put one above the other. Car No. 1 reaches top speed of 211 kilometers per hour, 11km/h more than the other car. When it comes to fuel economy an obvious choice would be the Spanish car, averaging around 6.2 liters of fuel per 100 kilometers (46 mpg), in combined cycle. That's 40% difference compared to the German car!

Seat 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 Spanish car beats the other contender by far, making it the best choice without even considering other things. When it comes to performance, both vehicles provide similar experience, so I wouldn't point any of them out. the Spanish car is in a different dimension economy-wise, and many people will find that crucial. All together, there's not much more to say, in this case I wouldn't even consider anything but Seat. 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. I suggest you spend two more minutes in order to find out which car, based on your needs and budget, would be picked by the virtual adviser™, among more than 12.000 different ones in our database.