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The Early 2011 Reliability Grade Point Averages and Grades for Brands of Automobiles
by James Bleeker
Photograph of a 2005 V6 Toyota
4Runner on 18 October 2010
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The V6 Toyota 4Runner has an early 2011 Auto Reliability
GPA of 3.81 over its 10-year data history and
has helped the Toyota line place third among all
automobile lines in the Early 2011 Auto
Reliability Grade Point Averages. See the
table below. |
This page provides detailed 2011 auto brand reliability
ratings and auto brand reliability rankings in a reorderable table. It expresses the auto
brand reliability ratings
and auto brand reliability rankings, and makes available brand reliability
comparisons and brand reliability contrasts, using the Auto Reliability Grade
Point Average, or Auto Reliability GPA. This auto reliability index is
used as it is an easy-to-understand auto reliability measure, and is well known
to nearly all persons having attended high school. The page also employs
Auto Reliability Grades as a reliability index, as this measure of auto
reliability provides a quick assessment of differences in motor vehicle
brand quality. The Auto Reliability GPA is an automobile reliability
statistic that is obtained from Consumer Reports' auto reliability
survey data
summarized in the reliability tables of Consumer Reports: New Car Buying
Guide: 2011 and
the April 2011 issue of the Consumer Reports magazine. Column
reordering on this page is Ajax
enabled to make for a convenient and easy-to-use reordering option.
The Average
GPA for each car brand is the average of the
Average GPAs of its models. The Average
Minimum GPA for each car brand is the average of the
Minimum GPAs of its models. The Reliable
Two, Toyota Motor Corporation and Honda Motor Company, appear first in the
table, because of their rather singular stature; the remaining manufacturers
are listed alphabetically.
Letter grades corresponding to Average GPAs and Average Minimum GPAs are determined thusly: A if the GPA is 3.50 to
4.00, B if the GPA is 2.50 to 3.49, C if the GPA is 1.50 to 2.49, D if
the GPA is 0.50 to 1.49, and F if the GPA < 0.50.
GPAs for 4 age ranges are given so that the visitor may
examine more thoroughly the age range that is of greater interest to
him/her, if such there be.
 |
The 2011 Early Reliability Grade Point Averages for Lines of Motor Vehicles
for Four 4-Year Age Ranges
|
ID |
Auto Manufacturer |
Line |
Line GPA for 0-to-4 Year Old Vehicles |
Line GPA for 2-to-6 Year Old Vehicles |
Line GPA for 4-to-8 Year Old Vehicles |
Line GPA for 6-to-10 Year Old Vehicles |
Average GPA |
Grade Based on Average |
Average Minimum GPA |
Grade Based on Average Minimum |
Average Number of Model Years of Data |
11 |
Toyota |
Lexus |
3.01 |
3.42 |
3.67 |
3.75 |
3.33 |
B |
2.97 |
B |
7.10 |
36 |
Toyota |
Toyota |
3.10 |
3.54 |
3.68 |
3.75 |
3.47 |
B |
3.08 |
B |
6.67 |
41 |
Toyota |
Scion |
3.15 |
3.57 |
3.66 |
|
3.50 |
A |
3.16 |
B |
6.26 |
48 |
Honda |
Acura |
3.55 |
3.60 |
3.35 |
3.31 |
3.51 |
A |
3.33 |
B |
7.40 |
63 |
Honda |
Honda |
3.27 |
3.45 |
3.59 |
3.39 |
3.46 |
B |
3.14 |
B |
6.57 |
75 |
BMW |
BMW |
1.21 |
1.77 |
1.99 |
1.88 |
1.29 |
D |
0.98 |
D |
5.10 |
78 |
BMW |
Mini |
1.63 |
0.88 |
0.63 |
0.67 |
0.95 |
D |
0.58 |
D |
7.50 |
88 |
Chrysler |
Jeep |
1.10 |
0.99 |
0.95 |
1.13 |
1.09 |
D |
0.79 |
D |
5.25 |
95 |
Chrysler |
Chrysler |
0.89 |
1.03 |
1.20 |
1.00 |
1.12 |
D |
0.64 |
D |
5.83 |
108 |
Chrysler |
Dodge |
1.08 |
1.03 |
1.25 |
0.95 |
1.06 |
D |
0.88 |
D |
5.33 |
121 |
Daimler |
Mercedes-Benz |
1.43 |
1.63 |
1.84 |
2.25 |
1.42 |
D |
1.11 |
D |
4.55 |
123 |
Daimler |
Smart ForTwo |
1.00 |
|
|
|
0.50 |
D |
0.00 |
F |
2.00 |
145 |
Ford |
Ford |
2.35 |
2.11 |
2.16 |
2.04 |
2.26 |
C |
1.99 |
C |
6.55 |
152 |
Ford |
Lincoln |
1.83 |
2.02 |
2.00 |
1.00 |
1.77 |
C |
1.54 |
C |
3.83 |
158 |
Ford |
Mercury |
2.37 |
2.28 |
2.20 |
|
2.28 |
C |
2.03 |
C |
5.20 |
168 |
Ford |
Volvo |
2.64 |
2.48 |
2.43 |
2.17 |
2.51 |
B |
2.09 |
C |
3.78 |
174 |
General Motors |
Buick |
1.78 |
1.67 |
2.00 |
|
1.79 |
C |
1.75 |
C |
4.00 |
180 |
General Motors |
Cadillac |
1.02 |
1.08 |
1.23 |
1.50 |
1.16 |
D |
0.68 |
D |
5.80 |
200 |
General Motors |
Chevrolet |
1.50 |
1.10 |
1.05 |
1.76 |
1.35 |
D |
1.04 |
D |
6.26 |
211 |
General Motors |
GMC |
1.31 |
1.12 |
1.49 |
2.05 |
1.37 |
D |
1.02 |
D |
6.20 |
213 |
General Motors |
Hummer |
0.50 |
0.33 |
|
|
0.42 |
F |
0.33 |
F |
3.00 |
217 |
General Motors |
Pontiac |
2.11 |
2.00 |
2.00 |
|
2.04 |
C |
1.83 |
C |
5.00 |
220 |
General Motors |
Saab |
3.25 |
2.17 |
1.25 |
1.13 |
1.95 |
C |
1.13 |
D |
7.50 |
224 |
General Motors |
Saturn |
0.89 |
0.83 |
2.00 |
|
1.52 |
C |
1.08 |
D |
3.67 |
237 |
Hyundai |
Hyundai |
2.54 |
2.50 |
2.36 |
1.92 |
2.44 |
C |
2.18 |
C |
5.18 |
242 |
Jaguar |
Jaguar |
1.00 |
2.00 |
2.00 |
2.00 |
1.33 |
D |
1.33 |
D |
2.00 |
253 |
Kia |
Kia |
2.41 |
1.97 |
1.35 |
1.17 |
2.10 |
C |
1.81 |
C |
3.78 |
257 |
Land Rover |
Land Rover |
2.00 |
1.50 |
1.00 |
|
1.50 |
C |
1.50 |
C |
1.50 |
269 |
Mazda |
Mazda |
2.36 |
2.10 |
2.44 |
2.25 |
2.15 |
C |
1.70 |
C |
5.80 |
276 |
Mitsubishi |
Mitsubishi |
2.83 |
2.83 |
2.25 |
2.15 |
2.51 |
B |
2.15 |
C |
2.80 |
284 |
Nissan |
Infiniti |
3.01 |
3.21 |
3.25 |
2.75 |
3.02 |
B |
2.72 |
B |
5.00 |
301 |
Nissan |
Nissan |
2.01 |
1.87 |
1.84 |
2.03 |
1.95 |
C |
1.56 |
C |
6.44 |
307 |
Porsche |
Porsche |
2.17 |
2.58 |
2.00 |
1.89 |
2.23 |
C |
1.75 |
C |
4.50 |
315 |
Subaru |
Subaru |
2.85 |
2.92 |
2.75 |
2.18 |
2.69 |
B |
2.13 |
C |
8.33 |
318 |
Suzuki |
Suzuki |
2.67 |
2.50 |
|
|
2.58 |
B |
2.50 |
B |
3.00 |
329 |
Volkswagen |
Audi |
1.41 |
1.37 |
0.85 |
1.00 |
1.19 |
D |
0.92 |
D |
3.22 |
341 |
Volkswagen |
Volkswagen |
1.78 |
1.38 |
0.92 |
1.00 |
1.37 |
D |
0.95 |
D |
3.55 |
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Notice that Toyota and Honda brands dominate the upper end of the reliability
spectrum for all age ranges.
The following bar chart graphically depicts the overall
line-average GPAs.

From the chart, it may easily be seen that the early 2011
average Reliability GPA of the Hyundai brand exceeds all of the
early average Reliability GPAs of the Detroit 3 brands. Also,
the early 2011 GPA of the Kia brand exceeds those of the Detroit
3 brands, save those of the Mercury and Ford brands.
Caution
|
When the average number of model years of data
(appearing in the far right column) for a line is small, the
reliability GPAs of that line may be less reflective of the line's
quality. |
Note
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The Auto Reliability GPA of the Pontiac line is
inflated by the Toyota-engineered Vibe. |
Disclosure
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Site manager is currently a
very small shareholder of Ford Motor Company (2010-03-26). I am not,
and have not been, a
shareholder of any other motor vehicle manufacturer. |
A PDF version of this page will be made available for
downloading and/or printing, if there are several requests for
such.
Note
|
Although this site was created using software by Microsoft,
you may encounter difficulty in downloading a PDF file from this
page using
Internet Explorer. However, with Mozilla Firefox, there should
be no difficulty, and the download should be speedy. Also,
with the Mozilla Firefox browser you will avoid IE's occasional distortion of
visual elements. |
The method of computation of the GPAs is probably familiar to nearly
every college, technical school, and high school student. A Grade Point of 4.00 (that is, an A) is given to a Consumer Reports
"Much Better Than Average" reliability rating, a GP of 3.00 (that is, a B) is given to a
CR "Better Than Average" reliability rating, a GP of 2.00 (that is, a C) to an "Average"
reliability rating, a GP of 1.00 (that is, a D) to a "Worse Than Average"
reliability rating, and a
GP of 0.00 (that is, an F) to a "Much Worse Than Average"
reliability rating. A Grade
Point Average (GPA) is an average of the Grade Points and is computed using
Microsoft's Average(a:b,[c:d],...) function.
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