Last updated on October 4th, 2023 at 11:05 am

The Porsche is a Germany-based automaker brand known for its longevity, and these cars stay in good conditions even after years of purchase. 

Porsche 911 is a sports car meant to be driven fast and hard. Porsche sports cars last many years, even with harsh driving. 

If you plan to purchase a Porsche 911, you should know Porsche 911’s Reliability, longevity and other factors. 

How Many Miles Will a Porsche 911 Last?

Most Porsche vehicles can be expected to last for about 150,000 miles, and the Porsche 911 has a life expectancy of 200,000 miles or ten years.

The average lifespan depends mainly on driving habits and maintenance history like any vehicle.

Each Porsche car is covered under a 4-year, 50,000-mile warranty with an extra two years for genuine Porsche parts

Porsche 911 Reliability: Is the Porsche 911 Reliable?

Even after 56 years in production, the Porsche 911 reliability remains unchanged. Porsche 911 is considered one of the most reliable cars ever made. 

Consumer Reports reported Porsche as the best brand of 2020. The 911 is also ranked at number 4 in luxury sports cars.

The new J.D. Power 2022 US Vehicle Dependability Study, VDS, rated Porsche 911 the highest-ranked model.  

Reliability Ratings of the Porsche 911 and Similar Cars

Car Models

Reliability Ratings
Chevrolet Corvette


Porsche 718 Boxster

Dodge Challenger


Ford Mustang

Lexus LC


Porsche 911

Chevrolet Camaro


Toyota GR Supra


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How Long Does the Porsche 911 Last Compared to Similar Vehicles?

The Porsche 911 has been around for a long time, and by now, it has gained some competitors. 

Porsche 911 vs. Ford Mustang

The Ford Mustang is a line of American automobiles manufactured by Ford since 1964. 

The Mustang is a sports car with an expected mileage of 200,000 miles on average, the same as miles expected from a 911. 

The maintenance and repair cost for the Mustang is $709 and for the 911 is $1072; the Porsche 911 is costly to maintain. 

RepairPal rates the Ford Mustang 3.5 out of 5, and the Porsche 911 gets 2 out of 5 for reliability ratings. 

According to J.D. Power, the Ford Mustang scores 85 out of 100, whereas the Porsche 911 gets 84 out of 100 for quality and reliability. 

Fuel tank capacity for the Ford Mustang is a bit more than for the Porsche 911.

Porsche 911 vs. Audi R8

The Audi R8 is a 2 seater sports car with a mid-engine introduced in 2006 by Audi’s German car manufacturer

Expected miles from an Audi R8 are 100,000 miles, while the Porsche 911 can last 200,000 miles. 

The annual maintenance and repair cost for an Audi R8 is $1123 on average and for a Porsche 911 is $1072.

The reliability rating for the Audi R8 is 3 out of 5, and for the Porsche 911 is 2 out of 5, according to RepairPal. 

J.D. Power scores the 911 84 out of 100, and unfortunately, there is no score for the Audi R8 due to insufficient data.

The Audi R8 offers more horsepower when compared to the Porsche 911. 

Porsche 911 vs. BMW M8

The BMW M8 is a high-performance version of the BMW 8 Series marketed by the BMW M sub-brand. 

A BMW M8 can be expected to run for 100,000 miles before needing extensive repairs, and this is less than the anticipated miles from a Porsche 911

The annual repair and maintenance cost of a BMW M8 is $765 on average and for a Porsche 911 is $1072. 

According to RepairPal, there is not enough data for BMW M8, so the reliability rating is not available, but for the Porsche 911, the reliability ratings are 2 out of 5. 

J.D. Power rates the Porsche 911 84 out of 100 while the BMW M8 cannot get placed as insufficient data. 

Even though the Porsche 911 is faster than the BMW M8, the M8 has a superior interface to the 911.  

Comparison Chart

 Car ModelsPorsche 911Ford MustangAudi R8


Expected Miles200,000 miles200,000 miles100,000 miles

100,000 miles

Annual Maintenance Cost



RepairPal Ratings


Insufficient data

J.D. Power Score

84/10085/100Insufficient data

Insufficient data

Price Range

Starts from $101,200Starts from $54,000Starts from $151,895

Starts from $146,000

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Thoughts on a High-Mileage Porsche 911

The Porsche vehicles are built with excellent craftsmanship and attention to every tiny detail by engineers, which means your Porsche is likely to have no defects. 

Even with regular and rough use, a pre-owned Porsche will not be a lemon after years of ownership

Before purchasing a 911 with high miles on the clock, look at the vehicle’s maintenance history and how it has been used. 

Have a mechanic inspect both interior and exterior of the car to look for any signs of damage or missing components. 

Best and Worst Years of Performance for the Porsche 911

This part will talk about some of the good and bad years of the Porsche 911.

Best Years

The original Porsche 911, released in 1964 to 1969, would go from 0 to 60 within 8.3 seconds, one-tenth slower than the Honda Civic 2021

The most popular and loved variant of the 911 was released in 1993. It was famous for its design and was the last air-cooled 911. 

2011 model of the Porsche 911 had incredible power as it offered 493 horsepower. The 2011 911 is famous for having a powerful engine

Worst Years

The 1989 model of 911 was criticized for the bodywork, which had bigger bumpers. Also, the interior was scrutinized for being very bland.

Porsche 911 variant released in 1973 was a small car that made beetle-like noises. It had a smaller and lighter engine, making it the least fun to drive.

2004 version of the 911 was a turbo model and is pretty reliable but had an IMS failure issue that affected most 2004 models.

Porsche 911 Model Years and Reliability Ratings

Porsche 911 Model Years

Reliability Ratings

2003 Porsche 911 Reliability


2004 Porsche 911 Reliability

2005 Porsche 911 Reliability


2006 Porsche 911 Reliability

2007 Porsche 911 Reliability


2008 Porsche 911 Reliability

2009 Porsche 911 Reliability


2010 Porsche 911 Reliability

2011 Porsche 911 Reliability


2012 Porsche 911 Reliability

2013 Porsche 911 Reliability


2014 Porsche 911 Reliability


2015 Porsche 911 Reliability


2016 Porsche 911 Reliability

2017 Porsche 911 Reliability


2018 Porsche 911 Reliability

2019 Porsche 911 Reliability


2020 Porsche 911 Reliability

2021 Porsche 911 Reliability


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Is the Porsche 911 Expensive to Maintain?

The annual average repair and maintenance cost for a Porsche 911 is $1072, almost double the repair cost for an average vehicle.

Porsche 911 is a luxury car model which is typically expensive to maintain as luxury cars have complex mechanisms which often develop complicated problems.

Listed below is a table about the repair and replacement costs for a Porsche 911.

Porsche 911 Model Years and Reliability Ratings

Porsche 911 Replacement/Repair


Air Conditioning Refrigerant Recover

$48 to $60

Fuel Pressure Test

$59 to $75
Clutch Hydraulic System Bleed

$48 to $60

Drive Belt Idler Pulley Replacement

$332 to $372
Window Switch Replacement

$206 to $225

Backup Warning System Sensor Replacement

$301 to $323
Engine Oil Level Sensor Replacement

$485 to $580

Variable Valve Timing Control Solenoid Replacement

$286 to $312
Air Bag Crash Sensor Replacement

$393 to $428

Suspension Shock or Strut Replacement

$2141 to $2248

How Long Does the Porsche 911 Brakes Last?

The average cost to replace brake pads on Porsche vehicles is about $662 to $702, and labor would add some extra cost of about $20 or $40.

However, brake rotor replacements cost much more; the average replacement can cost $900 to $2000.

Porsche cars are high-performance vehicles with brakes that wear out faster than usual. 

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How Long Does the Porsche 911 Engines Last?

The engine of a Porsche 911 can go well beyond 150,000 miles with proper maintenance and smooth driving habits.

Unfortunately, new engines for the 911 sports car are not sold anymore. So, if you have to buy one, it would be pre-owned. 

Oil changes can be costly, about $250 to $350, as synthetic oil is used for the turbocharged engines of the Porsche 911.

How Long Does the Porsche 911 Tires Last?

For street use, the front tires can be expected to last for about 20,000 to 25,000 miles, and the rear-end ones will last approximately 15,000 to 20,000 miles. 

Rotate the tires every 5000 miles to hinder uneven tire wear, help them last much longer, and provide a smoother ride. 

Avoid going for cheap tires or used ones, as those will put your vehicle’s condition at risk and provide an uncomfortable ride. 

Tips to Prolong the Lifespan of Your Porsche 911

  • Use good quality parts and fluids. 
  • Get used to the owner’s manual and learn about the location of essential components, what your car needs, and dashboard warning signs.
  • Store your car inside a garage to protect it from the weather’s elements.
  • Check the engine, coolant, and transmission fluid levels and top them up whenever needed.
  • Limit short rides as it does not let the car cool down completely.
  • Avoid extensive modifications to the car as it only increases wear and tears.
  • Follow the maintenance schedule strictly and regularly.
  • Wash your car often to prevent the formation of rust and corrosion.
  • Avoid off-roading and drive with care to put less stress on the vehicle.

We hope this article helps you with any questions regarding a Porsche 911.

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