Car Makers with the Least Reliable and Durable Cars of Model Year 1987
This page lists the 7 worst car makers of model year 1987 by reliability-and-durability grade point average (Reliability-Durability GPA, or more concisely R-D GPA). 1987's Bottom 7 Car Makers: The Seven Worst The 7 worst car manufacturers of 1987 are listed below in ascending order of Reliability-Durability GPA (worst first), together with their corresponding R-D GPA and Grade.
Chart of the 7 Worst Car Makers of 1987
The following bar graph depicts how much below average the Bottom 7 car manufacturers of 1987 are. The 7 worst are listed in ascending order (worst first). The Reliability-Durability GPAs of 1987 generally run higher than those of 1986 and earlier model years. The fact that the Reliability-Durability GPAs of 1987 are based on reliability ratings for the age range 4-to-5 years, rather than reliability ratings for the age ranges 4-to-5 years and 5-to-6 years, likely accounts for much, if not all, of the increase. See computations below.
Country Headquarters of the 7 Worst Car Makers of 1987
United States accounts for 3 of the 7 worst car manufacturers in 1987; South Korea, Sweden, Germany, and Japan each account for 1.
The following chart gives each nation's percent share of the 7 car companies with the least reliable and durable vehicles of 1987. Computations
To compute the reliability-durability grade point average of the MY 1987 cars, Consumer Reports' reliability ratings for the age range 4-to-5 years are used. For the R-D GPAs for model year 1975 to 1986, Consumer Reports' reliability ratings for the age ranges 4-to-5 years and 5-to-6 years are used. The reason for the difference is that CR did not provide an overall reliability rating (a component in the computation of the Reliability-Durability GPA) for much of the 1990s and the first half of the 2000s. CR's ratings are converted to numerical values following the standard academic pattern: a grade point of 4.0 (an A) is accorded a rating of Much Better Than Average, a 3.0 (a B) is accorded a rating of Better Than Average, a 2.0 (a C) is accorded a rating of Average, a 1.0 (a D) is accorded a rating of Below Average, and a 0 (an F) is accorded a rating of Much Below Average. Then, the grade point of CR's overall reliability rating is weighted 2/3 and the average of the grade points of the category ratings is weighted 1/3. Finally, a car maker's Reliability-Durability GPA is computed by taking the average of the Reliability-Durability GPAs of its models. Best and Worst Car Manufacturers of Each Model Year The Best Car Manufacturers of Each Model Year by Reliability-Durability GPA: 1985 1986 ... 2004 2005 The Worst Car Manufacturers of Each Model Year by Reliability-Durability GPA: 1985 1986 ... 2004 2005 The Best Cars of Each Model Year by Reliability-Durability GPA: 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 ... 2004 2005 The Worst Cars of Each Model Year by Reliability-Durability GPA: 1980 1981 1982 1983 1984 1985 1986 ... 2004 2005 The Best Car Brands of Each Model Year by Reliability-Durability GPA: 1985 1986 ... 2004 2005 The Worst Car Brands of Each Model Year by Reliability-Durability GPA: 1985 1986 ... 2004 2005 Best Car Brands by CR's List of Used Cars to Avoid: 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Worst Car Brands by CR's List of Used Cars to Avoid: 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Best Car Makers by CR's List of Used Cars to Avoid: 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Worst Car Makers by CR's List of Used Cars to Avoid: 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 For additional car quality information, visit www.AutoOnInfo.net and www.CarsOnInfo.net.For a Kindle ebook offering anywhere, anytime access to Auto Reliability GPAs and Grades, see: In particular, for additional durability information, see:
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