Bookmarking Auto on Info pagesSupporting Auto on InfoHome or Site Layout or Site Map or Site Index or Quick Jumps or Search Engine Directory or The MartAuto InformationReliability InformationReliability Percentranks or Reliability Grades - High StandardsPorsche 911 Reliability, Porsche Boxster Reliability and Porsche Cayenne Reliability Percentranks and Grades for Model Years 1999, 2000, 2001, 2002, 2003 and 2004

Reliability-Percentrank and Reliability-Grade Tables and Charts
To view tables of Reliability Percentranks and Reliability Grades by vehicle type, click the applicable type.
Small Cars Sports Cars, Sporty Cars and Coupes Family Cars and Large Cars Upscale and Luxury Cars SUVs Minivans Pickups Manufacturer Averages All Autos
To view tables of Reliability Percentranks and Reliability Grades by vehicle line, click the applicable line.
Acura Audi BMW Buick Cadillac Chevrolet Chrysler Dodge Eagle
Ford GMC Honda Hyundai Infiniti Isuzu Jaguar Jeep Kia
Land Rover Lexus Lincoln Mazda Mercedes-Benz Mercury Mini Cooper Mitsubishi Nissan
Oldsmobile Plymouth Pontiac Porsche Saab Saturn Scion Subaru Suzuki
Toyota Volkswagen Volvo            
Beginning with the 2007 updates, the Reliability Grades and Reliability Percentranks of motor vehicle lines and types will appear on the same page. This should quicken comparisons.
To view charts of Reliability Percentrank averages and Percentranks and extrapolations, click the applicable line.
Acura Audi BMW Buick Cadillac Chevrolet Chrysler Dodge Eagle
Ford GMC Honda Hyundai Infiniti Isuzu Jaguar Jeep Kia1
Land Rover Lexus Lincoln Mazda Mercedes-Benz Mercury Mini Cooper1 Mitsubishi1 Nissan
Oldsmobile Plymouth Pontiac Porsche1 Saab Saturn Scion1 Subaru Suzuki1
Toyota Volkswagen Volvo            

1Current data are insufficient to warrant charts.
To view tables of the Best and Worst motor vehicle models, click the applicable year.
Best and Worst of 1988 Best and Worst of 1989 Best and Worst of 1990 Best and Worst of 1991 Best and Worst of 1992 Best and Worst of 1993 Best and Worst of 1994 Best and Worst of 1995 Best and Worst of 1996
Best and Worst of 1997 Best and Worst of 1998 Best and Worst of 1999 Best and Worst of 2000 Best and Worst of 2001 Best and Worst of 2002 Best and Worst of 2003 Best and Worst of 2004 Summary
Chart Summary of 2006 Updates Chart and Table Summary of 2007 Updates Chart and Table Summary of 2008 Updates            
Charts of Gaps
Charts of the Great Gaps Extrapolations of the Great Gaps              
Durability Tables and Charts
Page 1 - Original Durability Page Page 2 - Results of 2001 Survey Page 3 - CCC's 15 Most Frequently Stolen Page 4 - 2001 Summary of Rosters Page 5 - Top 20 High Mileage Page 6 - The 2006 Study of Model Year 1998 Page 7 - The 2006 Toyota Age Equivalents for Model Year 1998 Page 8 - The 2006 Honda Age Equivalents for Model Year 1998 Page 9 - The 2007 Dilapidation Rates for Model Years 1998 - 2002
Page 10 - The 2007 Study of Model Year 1999 Page 11 - The 2007 Toyota Age Equivalents for Model Year 1999 Page 12 - The 2007 Honda Age Equivalents for Model Year 1999 Page 13 - 2007 Pickup Durability Updates for Model Years 1998, 1999, 2000 and 2001 Roster of 300,000-Mile Vehicles with Statistical Summary Mini-Survey No. 52: A Toyota Owner Satisfaction Poll with Enquiries into Toyota Durability      

This page has been updated to include the data that became available in 2007.

A model's Reliability Percentrank is a ranking of that model's Reliability Score relative to all other Reliability Scores for the given model year and age range. The percentrank was computed using the Percentrank function of Microsoft's Excel 2002 and, as the first part of the compound word percentrank suggests, is a value between 0.00 and 1.00. If a model's Reliability Percentrank is near 0.00, it has a very low Reliability Score, and if a Percentrank is near 1.00, it has a high Reliability Score. For a more detailed explanation of Reliability Percentranks and Reliability Scores, click here to be taken to the Methodology page.

Note that Reliability Percentranks for model year 2004 are based on one year of data. Consequently, the Reliability Percentranks and Grades for individual models of that year are more subject to statistical fluctuation. These early data have been provided as several visitors have expressed interest in Percentranks of a more current model year; however, a better guide to the reliability of more current, and the most current, model years are likely the five-year averages.

Charts of 2008 Reliability Predictions
(Each chart is linked to a news article providing additional information.)

Articles on Consumer Reports' 2008 Reliability Ratings for Model Years 1998 through 2007
(Each chart is linked to a news article providing additional information.)
Some Charts and Tables Pertaining to Reliability, Durability and Other Quality Measures
(Each chart is linked to a news article providing additional information.)

 

Additional Charts and Tables appear below the list of news articles.

Some Porsche-related news articles:

March 2008: February 2008 U.S. Safety Recalls by Land Rover (1), Volkswagen (1), Chrysler (1), Ford Motor Company (5), Porsche (1), Mitsubishi (1), Nissan (1), Honda (2), and Toyota (1)
August 2007: The 2007 Reliability-Durability Updates: For Vehicles 3-to-5 Years Old, Toyota and Honda Account for 18 of 19 Best, GM - 24 of 61 Worst
July 2007: The 2007 Reliability-Durability Updates: For Vehicles 4-to-6 Years Old, Toyota and Honda Account for 17 of 17 Best, GM - 24 of 56 Worst: Will a Typical Toyota at 13 Years of Age Be as Troublesome as a Typical GM at 3 Years of Age?
July 2007: The 2007 Reliability-Durability Updates: For Vehicles 5-to-7 Years Old, Toyota and Honda Account for 12 of 13 Best, GM - 19 of 48 Worst: Will a Typical Toyota at 21 Years of Age Be as Troublesome as a Typical GM at 3 Years of Age?
July 2007: The 2007 Reliability-Durability Updates: For Vehicles 6-to-8 Years Old, Toyota and Honda Account for 13 of 13 Best, GM - 18 of 43 Worst: Will a Typical Toyota at 19 Years of Age Be as Troublesome as a Typical GM at 3 Years of Age?
March 2007: GM Expands Lead on CR's Used-Cars-to-Avoid List, a Tad
March 2006: U.S. Recalls Involving (1) 1999-2000 Chrysler Cirrus, Dodge Stratus, and Plymouth Breeze Sedans, (2) 2006 Honda Civics, (3) 2006 F-150 and Lincoln Mark LT Pickups, (4) 2006 Dodge Dakota, Dodge Ram, and Mitsubishi Raider Pickups, (5) 2003-2006 Nissan Murano SUVs, (6) 2005-2006 Porsche 911 Carrera S and Carrera S Cabriolet, (7) 2003 Audi A4s and A6s, and (8) 2000-2003 Dodge Dakota Pickups, 1997-2001 Jeep Cherokee SUVs, and 1997-2004 Jeep Grand Cherokee and Wrangler SUVs

The visitor may find the following tables and charts useful as well.

Cumulative Number of Auto on Info Auto Manufacturer Awards for Motor Vehicle Quality   Cumulative Number of First Place Positions in Auto on Info's Auto Manufacturer Awards for Motor Vehicle Quality
Auto Manufacturer Awards Auto Manufacturer First Place Positions
Toyota 42 Toyota 39
Honda 34 Honda 5
Mercedes-Benz 2 Mercedes-Benz 0
Nissan 1 Nissan 0
BMW 1 BMW 0
Volvo 1 Volvo 0
General Motors 0 General Motors 0
Ford 0 Ford 0
Chrysler 0 Chrysler 0
This table is current as of 14 August 2007. This table is current as of 14 August 2007.

Shares of Consumer Reports' 2005 Quick Picks, by Auto Manufacturer and Motor Vehicle Line
Manufacturer Share of 2005 Reliability Quick Picks Share of 2005 Owner Satisfaction Quick Picks Share of 2005 Fuel Economy Quick Picks Share of 2005 Overall Quick Picks
  Vehicle Line
Toyota .63 .47 .46 .33
  Lexus .11 .16 0.00 .14
  Toyota .53 .32 .46 .19
Honda .21 .26 .38 .33
  Acura .11 .11 .08 .05
  Honda .11 .16 .31 .29
Subaru .05 .11 0.00 .14
Nissan 0.00 .05 0.00 .14
  Infiniti 0.00 0.00 0.00 .05
  Nissan 0.00 .05 0.00 .10
Mazda .05 .05 .15 .051
BMW 0.00 .05 0.00 0.00
Mitsubishi .05 0.00 0.00 0.00
Ford, Chrysler, General Motors, and all others 0.00 0.00 0.00 0.00
1 Mazda's one entry, the Mazda3 i, may have been pulled from Consumer Reports' Overall Quick Pick List due to a "Poor" side-impact crash test rating by the Insurance Institute for Highway Safety. The Insurance Institute's rating did cause Consumer Reports to pull the Mazda3 from its recommended list.
All shares are rounded to two significant digits.
CR 2005 Quick Picks are quick pick models of model year 2005.
Note: A rebadge of a product engineered by Toyota, but sold by another auto manufacturer, is omitted from the latter's share.
Source for Consumer Reports' Good Bets: "Quick Picks," Consumer Reports, April 2005, P. 31

Shares of Consumer Reports' 2007 Good Bets for Model Years 1997-2006 with Selected 1998-2002 Reliability Percentrank Averages, by Auto Manufacturer and Motor Vehicle Line
Manufacturer Share of CR 2007 Good Bets with a 1998-2002 Reliability Percentrank Average1 Greater Than or Equal to .80 Share of CR 2007 Good Bets with a 1998-2002 Reliability Percentrank Average1 Greater Than or Equal to .85 Share of CR 2007 Good Bets with a 1998-2002 Reliability Percentrank Average1 Greater Than or Equal to .90 Share of CR 2007 Good Bets with a 1998-2002 Reliability Percentrank Average1 Greater Than or Equal to .95
  Vehicle Line
Toyota .54 .55 .72 .83
  Lexus .16 .19 .28 .50
  Toyota .38 .35 .44 .33
Honda .27 .32 .22 .17
  Acura .11 .13 .06 0.00
  Honda .16 .19 .17 .17
Subaru .03 0.00 0.00 0.00
Nissan .14 .10 .06 0.00
  Infiniti .08 .10 .06 0.00
  Nissan .05 0.00 0.00 0.00
Mazda .03 .03 0.00 0.00
Ford, Chrysler, General Motors, and all others 0.00 0.00 0.00 0.00
1 If the vehicle model is too new for a 1998-2002 Reliability Percentrank average to exist, the early 2003 Reliability Percentrank is used when such exists.
All shares are rounded to two significant digits.
CR Good Bets are models that have several model years between 1997 and 2006 of better-than-average reliability and have performed well on Consumer Reports' road tests. An auto Reliability Percentrank is a measure of relative overall reliability used by Auto on Info.
Note: Two rebadges of products engineered by Toyota, but sold by another auto manufacturer, are omitted from the latter's share.
Source for Consumer Reports' Good Bets: "CR Good Bet: The Best of Both World's," Consumer Reports Cars: Used Car Buying Guide 2006, p. 25
Source for Reliability Percentrank averages: Table I-MVRP

Median Value of a New Big Three Vehicle as Assessed by Mini-Survey Respondents Reporting Ownership of a Quality Four Product on or before July 8, 2005, by Manufacturer
Manufacturer Big 3 Vehicle Valued at More Than What Is Currently Asked Big 3 Vehicle Valued at What Is Currently Asked Big 3 Vehicle Valued at Only 95% of What Is Currently Asked Big 3 Vehicle Valued at Only 80% of What Is Currently Asked Big 3 Vehicle Valued at Only 50% of What Is Currently Asked Big 3 Vehicle Valued at Nothing Big 3 Vehicle Valued at Nothing Plus Respondent Would Require $20,000+ per Year to Drive It Big 3 Vehicle Valued at Nothing Plus Respondent Would Require $200,000+ per Year to Drive It Respondent Unwilling to Own a Big Three Vehicle under Any Circumstance
Toyota Motor Corporation               √  
Honda Motor Company           √      
Subaru Division of Fuji Heavy Industries, Ltd.1             √    
Nissan Motor Company1       √          
1 Very few respondents reported owning a product by Nissan or Subaru.
The Big Three manufacturers are General Motors Corporation, Ford Motor Company, and the Chrysler Group of DaimlerChrysler AG. See Glossary.
To view more results or to express your assessment of the value of a new Big Three Vehicle, go to Mini-Survey No. 31, "The True Value of a Big Three."

To view the financial stature of the major auto manufacturers, click here. To view more charts of manufacturer percentage shares of high mileage roster listings, click here. To view the summary of the best and worst cars and trucks tables, click here. To view more information regarding U.S. recalls, click here. To view the menu of articles on recalls (mainly in the U.S.), click here. To view Table I with the Reliability Index Values and Averages, click here. To do further internet research on automotive quality, click here to go to the Search Engine Directory Page. To add your experiences to the pool of Mini-Survey responses, click here to go to the Mini-Survey Menu Page.

Related Mini-Surveys
A Toyota Owner Satisfaction Poll with Enquiries into Toyota Durability
A Lexus Owner Satisfaction Poll with Enquiries into Lexus Durability
An Infiniti Owner Satisfaction Poll with Enquiries into Infiniti Durability
An Owner Satisfaction Poll for Honda, Acura, Toyota, Lexus, Subaru, Nissan, Infiniti, BMW, Mercedes-Benz, and Volvo Owners
The True Value of a Big Three
Big Three Bin Readiness
General Motors Travails and Prospects
Is the Ownership of a General Motors Vehicle a Useful Index of 21st-Century Cognitive Uselessness?

The following poll permits the reader to express his assessment on General Motors Corporation.