Porsche vs. Mercedes: Reliability

Do you want to buy a German luxury car and are undecided whether to pick a Porsche or Mercedes? Both of these cars are fitted with high-tech features, top engineering and luxurious qualities. But are they equally reliable?

Mercedes-Benz may have pioneered most of the automobile technologies that we see today, but when it comes to reliability, Porsche is the ideal car. According to many industry reliability scores, Porsche is more reliable than Mercedes by a mile.

Not only is Porsche more reliable than Mercedes-Benz, but it also beats out other German luxury car makers like BMW, Audi, and VW. According to J.D. Power rankings, the most reliable Porsche model on the market is the Porsche 911, while the least reliable Porsche model is the Porsche Boxster.

Despite the importance of reliability rankings, of course there are other factors to consider when car shopping as well. Purchasing one of these luxury vehicles is an investment, so consider what’s most important for you, in order to land yourself the best car possible.

Which car is better?

Porsche Cayenne vs. Mercedes-Benz GLE-Class

The Porsche Cayenne is one of the most popular luxury SUVs on the market. This compact SUV is beautifully designed and oozes style and luxury. The Mercedes GLE-Class is not far-off, but it’s not as appealing as the Cayenne.  

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The Porsche Cayenne has a starting price of $68,850, while the Mercedes-Benz GLE-Class has a starting price of $58,300. Even though there is a big difference in price, the extra cost of the Porsche Cayenne is worthwhile. This is because the Cayenne is slightly more powerful and reliable than the GLE-Class.

While the Mercedes-Benz GLE-Class comes with a 2.0-liter inter-cooled turbo engine that delivers a maximum of 255 hp at 5800 rpm, the Porsche Cayenne comes with a 3.0-liter inter-cooled turbo engine that delivers up to 355 hp at 5300rpm.  What’s more, both of these models have an AWD system, which is ideal for off-road driving.

But in terms of safety and comfort, the Mercedes-Benz GLE-Class stands out more. Additionally, the GLE-Class is more spacious than the Porsche Cayenne. But like many Porsche models, the Cayenne is more reliable than the GLE-Class, thanks to the fewer problems reported per 100 vehicles than Mercedes-Benz.

Porsche Taycan vs. Mercedes-AMG GT

If you desire a luxurious sports car that’s also fast, the Porsche Taycan or Mercedes-AMG GT are the best choices. Both of these German powerhouses are fast and reliable. However, the Porsche Taycan’s reliability is not fully tested yet, since it’s only been in existence for a short period.

The Porsche Taycan has a starting price of $80,000, while the Mercedes-AMG GT has a base price of around $118,600. It’s clear that the Mercedes-AMG GT is more sophisticated than the Porsche Taycan. However, both of these cars are super-fast and powerful.

In spite of the Porsche Taycan being powered by electricity and Mercedes-AMG GT being powered by gas, both of these cars are built for racing. The Porsche Taycan delivers up to 522 hp, while the Mercedes-AMG GT delivers up to 523 hp. Also, both of these cars have great handling capabilities, which is crucial when driving at full speed.

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Porsche Panamera vs. Mercedes-AMG E63 S

The Porsche Panamera and Mercedes-AMG E63S are both midsize luxury sedans. They are some of the fastest luxury sedans on the market. They also both feature an appealing sportsy look. With powerful engines and fantastic handling, both of these cars are worth their exorbitant prices.

The Porsche Panamera is slightly cheaper, as it has a base price of $88,000. The Mercedes-AMG E63 S, with its advanced features, has a starting price of about $108,000. It’s important to note that the Porsche Panamera comes with an RWD system, while the AMG E63 S is fitted with a 4matic AWD system.

Despite the difference in price, both of these cars come with lovely and luxurious interiors. But as usual, the Porsche Panamera is more reliable than the Mercedes-AMG E63 S model.


Why do luxury cars like Porsche and Mercedes-Benz break down easily?

Most luxury cars break down easily because they usually tend to use new technologies on their vehicles, that haven’t stood the test of time yet. Most of these companies make adjustments to their technology after they are already in use.

What are the common problems that Porsche owners are likely to face?

If you’re a proud owner of a Porsche, you should be ready to tackle some of the common Porsche problems. These include cooling issues, engine problems, oil and water leaks, clunky clutch, erratic battery, cracked cylinder liner, and transmission failure.

What are the common problems that Mercedes owners are likely to face?

The common issues Mercedes-Benz owners are likely to face over the years vary according to the car model and year. Some models also experience problems faster than others. The common Mercedes issues include rust, transmission issues, air suspension failure, oil leaks, engine misfires, and much more.

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Which one is the better car, Porsche or Mercedes-Benz?

Both of these luxury German automakers offer some of the best luxury car brands on the market. However, these brands are totally different in what they specialize in. If you’re looking for luxury and safety, Mercedes-Benz is the best bet. But if you want top engineering and pure driving pleasure, Porsche is the better choice.

What is the most reliable German car brand?

German car brands are some of the best in the automotive industry. Nonetheless, not all these brands are reliable and some have disappointed buyers over the years. Porsche is the most reliable German car brand, followed by Mercedes, and then Audi and BMW are close to the bottom. 

The most reliable German car model is the Porsche 911, which is later followed by Mercedes-Benz E-Class, Audi A3, BMW 5 series, BMW 2-series, Mercedes-Benz C-Class, Audi A4, Audi A5, and BMW 4 series. Before you purchase any car, it’s crucial to find out its reliability score.

Porsche is most reliable

Mercedes-Benz may be more luxurious and safer than Porsche, but Porsche is the most reliable car between the two brands. Apart from that, Porsche also tops Mercedes-Benz in terms of pure driving experience and engineering. Overall, both of these cars are excellent and luxurious. 

Marko Mikulic

Why do you love writing about cars? I love writing about cars as cars are a huge personal interest of mine. I was raised in a car enthusiast community and ever since I was young, I always wanted to do car-related work.

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