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Porsche 911 Reliability for 2024

How reliable is the Porsche 911? iSeeCars analyzed over 300 million vehicles to find out, and to determine how long each model can last.

The Porsche 911 (coupe) has an average lifespan of 121,418 miles or about 27.6 years. The 911's predicted lifespan is derived from over 300 million data points iSeeCars analyzed to determine this model’s average lifespan. These same data points show the Porsche 911 (coupe) is typically driven 3,850 miles a year during its first 10 years of use, and has a 0 percent chance of reaching at least 200,000 miles during its usable lifespan.

These factors contribute to the Porsche 911 (coupe)'s 8.4 out of 10 reliability rating, ranking it:

  • 4 out of 41 Most Reliable Luxury Sports Cars
The starting price for a new Porsche 911 (coupe) is $120,100. The price range for a used (1- to 5-year-old) Porsche 911 (coupe) is $112,209-$347,962.

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The Porsche 911 (coupe) has an average lifespan of 121,418 miles or about 27.6 years. The 911's predicted lifespan is derived from over 300 million data points iSeeCars analyzed to determine this model’s average lifespan. These same data points show the Porsche 911 (coupe) is typically driven 3,850 miles a year during its first 10 years of use, and has a 0 percent chance of reaching at least 200,000 miles during its usable lifespan.

These factors contribute to the Porsche 911 (coupe)'s 8.4 out of 10 reliability rating, ranking it:

  • 4 out of 41 Most Reliable Luxury Sports Cars
The starting price for a new Porsche 911 (coupe) is $120,100. The price range for a used (1- to 5-year-old) Porsche 911 (coupe) is $112,209-$347,962.

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  • Reliability score 8.4 / 10
  • Avg Lifespan: 121.4k miles (27.6 years)
iSEECARS SCORE

iSeeCars Best Car Rankings are calculated based on an analysis of data from over 12 million cars that assesses how long each vehicle lasts and how well it retains its value over time, along with safety data from the National Highway Traffic Safety Association

See how we rank these cars
9.2 / 10
  • Reliability 8.4 / 10
  • Value Retention 10 / 10
  • Safety Not Available
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iSEECARS SCORE

iSeeCars Best Car Rankings are calculated based on an analysis of data from over 12 million cars that assesses how long each vehicle lasts and how well it retains its value over time, along with safety data from the National Highway Traffic Safety Association

See how we rank these cars
8.6 / 10
  • Reliability 8.5 / 10
  • Value Retention 8.8 / 10
  • Safety Not Available
Vehicle Image
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How We Rank These Cars

iSeeCars Reliability Score is calculated based on the latest research from our data science team.

The iSeeCars Reliability Score is calculated based on the analysis of over 312 million cars using a proprietary mathematical model that estimated the probability that each vehicle would survive to various mileage thresholds. This survival model was used to calculate the average lifespan of each model, which forms the basis of the reliability score. The safety score is based on NHTSA safety ratings.

Along with the Reliability ratings, we show comprehensive iSeeCars ratings for each model, because we believe multiple factors should be taken into account when buyers are seeking the best overall vehicle. The overall iSeeCars Score consists of an analysis of three factors: reliability, value retention and safety. The iSeeCars Value Retention Score is based on data analysis from our 5-Year Depreciation Studies and the iSeeCars Safety Score is based on NHTSA and IIHS Safety Ratings.

Vehicles are scored in three categories:

Reliability

The reliability score represents an analysis of iSeeCars' proprietary research on the longest-lasting vehicles.

Value Retention

The value retention score is based on our data science team's statistical analysis and prediction of 5-year depreciation from MSRP to determine which cars hold their value best, using US Bureau of Labor Statistics data to adjust for inflation.

Safety

The safety score is calculated based on the last five years of crash test ratings from the National Highway Traffic Safety Administration (NHTSA) and incorporates the latest Top Safety Pick information from the Insurance Institute for Highway Safety (IIHS).