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The 20 Least Reliable and Durable Cars of Model Year 1986 This page lists the 20 worst cars (as well as the worst 30, worst 40, and worst 50) of model year 1986 by reliability-and-durability grade point average (R-D GPA). 1986's Bottom 10 Cars: The Ten Worst The 10 worst cars of 1986 are listed below in ascending order of Reliability-Durability GPA (worst first), together with the corresponding R-D Grade.
AMC's Renault Alliance, Encore was the worst of 1985 as well. The short-lived Merkur XR4Ti was the brainchild of Bob Lutz, then a vice president of Ford Motor Company and later part of General Motors' management team when GM share price went to zilch and taxpayer coffers poured tens of billions into GM to preserve it from extinction. Manufacturers of the 10 Worst General Motors Corporation's share of the 10 least reliable-durable cars in model year 1986 is 5, same as in 1985 and up from 2 in 1984. Ford Motor Company's share of the 10 worst cars of 1986 is 3, up from 0 in 1984, 1983, 1982, 1981, and 1980. American Motors Corporation's share of the worst cars of 1986 is 2, down from 3 in 1985 and 4 in 1984. Chrysler Corporation's share of the 10 worst was 0, down from 3 in 1985 and 4 in 1984. None of the then Michigan 4 manufacturers (American Motors Corporation was absorbed by Chrysler Corporation in 1987) accounted for 1986's 10 best cars, 1985's 10 best cars, 1984's 10 best cars, 1983's 10 best cars or 1982's 10 best cars. The following chart depicts each manufacturer's percent share of the Bottom 10 of 1986.  1986's Next 10 Worst Cars
The next 10 of the 20 worst cars are listed below in ascending order of Reliability-Durability GPA (worst first), together with the corresponding R-D Grade.
Worthy of note is that unit sales of the Hyundai Excel plunged in succeeding years, while there was no similar plunge in unit sales of products by General Motors, Chrysler, Ford, or American Motors. Most likely, the expectation of many U.S. consumers was that the quality of the first generation made-in-South-Korea Excel would roughly approximate the quality of made-in-Japan vehicles, an expectation that would prove to be far from the mark, while Michigan 4 consumers knew what they were buying and were inured to similar or greater shortcomings. Manufacturers of the 20 Worst General Motors Corporation accounts for 45% of the 20 worst cars of model year 1986 - same as in 1985 and up from 35% in 1984 and down from its 75% in 1983 and 1981, 80% in 1982 and 50% in 1980. Chrysler Corporation accounts for 20% of the 20 least reliable-durable cars of 1986 - down from 30% in 1985 and 1984 and up from 10% in 1983, 1982 and 1981 and 25% in 1980. Ford Motor Company accounts for 20% of the 20 worst of 1986 - up from 10% in 1985, 1984 and 1982 and up from 0% in 1983, 1981 and 1980. American Motors accounts for 10% of the 20 worst of 1986 - down from 15% in 1985 and 20% in 1984. Hyundai Motor Company accounts for 5% of the 20 worst of 1986, the first year offering the necessary data for a GPA computation. The Detroit 3 manufacturers (General Motors, Chrysler, and Ford) account for 17 of 1986's 20 worst cars, same as in 1985, and the Michigan 4 (General Motors, Chrysler, American Motors, and Ford) account for 19 of the 20 worst, down from 20 in 1985. The following chart gives each car maker's percent share of the Bottom 20 of 1986.  1986's Next 10 Worst Cars
The bottom 10 of the 30 worst cars are listed below in ascending order of Reliability-Durability GPA (worst first), together with the corresponding R-D Grade.
Manufacturers of the 30 Worst Each manufacturer's percent share, rounded to the nearest tenth of a percent, of the 30 worst vehicles by R-D GPA is:
Chart of the 30 Worst Cars of 1986 The following bar graph depicts how much below average the Bottom 30 cars of 1986 are. The 30 worst are listed in ascending order (worst first).  1986's Next 10 Worst Cars
The bottom 10 (12 by tie) of the 40 worst cars are listed below in ascending order of Reliability-Durability GPA (worst first), together with the corresponding R-D Grade.
Manufacturers of the 42 Worst Each manufacturer's percent share, rounded to the nearest tenth of a percent, of the 42 worst vehicles of model year 1986 by R-D GPA is:
1986's Next 8 Worst Cars The bottom 8 of the 50 worst cars are listed below in ascending order of Reliability-Durability GPA (worst first), together with the corresponding R-D Grade.
Manufacturers of the 50 Worst Each manufacturer's percent share of the 50 worst vehicles of model year 1986 by R-D GPA is:
Note that no Japanese manufacturer offered a car or truck among 1986's 50 worst of North America. Computations To compute the reliability-durability grade point average of the MY 1986 cars, Consumer Reports' reliability ratings for the age ranges 4-to-5 years and 5-to-6 years are used. 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, for each age range, 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, the average for the two age ranges is taken. The Renaul Alliance, Encore, Jeep Grand Wagoneer, Merkur XR4Ti, Pontiac Firebird V8, Oldsmobile Firenza Inline 4, Pontiac Firebird V6, V8, Chrysler laser, Dodge Daytona Turbo, Pontiac Firebird V6, Ford Thunderbird Inline 4 Turbo, Plymouth Caravelle Turbo, Dodge 600 Turbo, Peugeot 505 Inline 4, and Oldsmobile Toronado V6 offered only one age range of data. Best and Worst Vehicles of Each Model Year 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 Additional Resources 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 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 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 CarsOnInfo.net.In particular, for additional durability information, see:
www.CarQualityInfo.net: The car-quality website for the brighter-than-average North American consumer.
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