Mercedes-Benz
CLE
Porsche
911
Mercedes-Benz CLE vs Porsche 911: 2025 Comparison
The short answer
The Mercedes-Benz CLE offers fuel economy, while the Porsche 911 excels at power instead. Choose the Mercedes-Benz CLE if you prioritize fuel economy in daily driving, or the Porsche 911 if power matters more for your needs. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
CLE
Overall
Sentiment is mixed and highly dependent on the specific powertrain and trim. The CLE 53 AMG receives significant praise for its styling, which is frequently described as "incredible," "aggressive," and a "looker." It is also commended for its powerful and reliable inline-6 engine, comfortable ride, and being a compelling "middle of the road" daily driver that balances performance and comfort. The CLE 450 is noted for its swift acceleration, excellent cornering, and comfortable highway cruising, with interior quality perceived as a step above the C-Class.
Best version to buy
CLE 53 AMG: This trim is overwhelmingly recommended over the non-AMG variants (300/450) for its superior performance, more aggressive styling, and overall driving experience. Owners state they would choose a C or E-Class AMG over a CLE 300/450, emphasizing that the AMG variant justifies the price increment.
Known issues
- ⚠Electronic/software glitches: Includes complete infotainment screen failures, system freezes requiring restarts, modules crashing during updates, and the vehicle not properly shutting down when locked. Frequency: recurrent.
- ⚠Underpowered 4-cylinder engine (CLE 200/300): Noted as very slow, with sluggish acceleration especially at highway speeds (60-80 mph/97-129 km/h), conservative tuning, and delayed throttle response. Frequency: recurrent.
- ⚠Transmission performance: Described as "horrible for a performance type vehicle" in at least one direct comparison, though specific details are isolated. Frequency: isolated.
911
Overall
Sentiment is deeply polarized and varies significantly by generation and model. Long-term ownership satisfaction is frequently described as very high, with many owners reporting the car living up to or exceeding lifelong expectations. The 911 is often cited as a benchmark for driver engagement and is recognized as a highly satisfying vehicle to own.
Best version to buy
997.2 Generation: Specifically praised as the "absolute best modern 911" for combining hydraulic steering, a manual transmission, and a modern enough interior. The 997.1 Turbo is also highlighted as a desirable, proven performance variant with a durable engine and dry-sump oiling.
Known issues
- ⚠Extremely high maintenance and repair costs: Major engine or transmission failure can cost more than the car's value, and parts are exceptionally expensive. Frequency: very frequent.
- ⚠Turbo lag in modern turbocharged engines (991.2, 992): Noted as a significant dynamic flaw, with criticism that reviewers downplay its presence. Frequency: recurrent.
- ⚠Interior material quality and durability: Hard plastics, manual seats in base models, and specific issues like peeling door cards on 991 models left in the sun. Frequency: recurrent.
The verdict
The Mercedes-Benz CLE is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the Porsche 911, based on the data above. If power matters more to you than running costs, the Porsche 911 is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Mercedes-Benz CLE or the Porsche 911?
Owner reports show similar reliability sentiment for the Mercedes-Benz CLE and the Porsche 911. Check the known issues listed above for specific differences between the two.
Which is better for families, the Mercedes-Benz CLE or the Porsche 911?
Both seat a similar number of passengers based on our data. The Mercedes-Benz CLE is classed as a Cabriolet, the Porsche 911 as a Coupe, which affects cargo space and ride height for family use.
Which has better fuel economy, the Mercedes-Benz CLE or the Porsche 911?
The Mercedes-Benz CLE is more fuel-efficient on paper: 9.3-9.8 L/100km combined versus 11.6-11.8 L/100km for the Porsche 911, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Mercedes-Benz CLE or the Porsche 911?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Porsche 911 than the Mercedes-Benz CLE. See the known issues comparison above.