1965-67 U.S. Corvair RPO
Statistics Addendum
By Kent Sullivan
(Thanks to
Mark Corbin for his assistance)
As stated in the
original RPO statistics article, the simplifying assumption was made
that every RPO was theoretically available for all cars
produced. This addendum dives more deeply into the topic by exploring the
significantly more-complicated reality.
Many factors reduce the total number of
cars for which a given RPO is applicable:
-
Model availability (e.g., not
available on Corsas)
-
Body style availability (e.g.,
sedans only)
-
Option interaction
 | Conflicting option(s) (e.g.,
spare tire lock [P19] not available with air conditioning [C64]) |
| Exclusive option(s) (e.g., only
one type of wheel cover may be installed: N96, P01, or P02) |
|
Required option(s) (e.g., 3.55:1
differential [G95] required with 140 HP engine [COPO 9551] in 1967) |
Standard equipment for certain
configurations (e.g., 3.27:1 differential [G93] standard on 500s and Monzas)
Table 6 contains a comparison of
"all" to "subset" totals for RPOs in the first two categories
only (model and/or
body style).
Table
6: Options for which a subset of
models and/or body styles apply, grouped by Uniform Parts
Classification (UPC)
|
RPO |
Option
Description |
Year |
Three-Year
Average (All) |
Three-Year
Average (Subset) |
Applicable
Production Subset |
|
1965 |
1966 |
1967 |
|
% All |
%
Subset |
% All |
%
Subset |
% All |
%
Subset |
|
|
|
Body - UPC 1 (A01
- E99) |
|
A67 |
Folding Rear Seat |
1.88% |
8.13% |
2.24% |
7.07% |
3.58% |
7.99% |
2.56% |
7.73% |
500s only |
|
A82 |
1966: Bucket or
Bench Seat Headrests; 1967: Bench Seat Headrests |
n/a |
1.15% |
0.13% |
0.29% |
0.64% |
0.72% |
500s only |
|
AL5 |
Custom
Deluxe Center Rear Seat Belt (requires
A39) |
n/a |
0.73% |
3.24% |
0.73% |
3.24% |
sedans only |
|
AS2 |
Strato-Ease
Bucket Seat Headrests |
n/a |
0.75% |
1.36% |
0.75% |
1.36% |
Monzas only |
|
C06 |
Power Convertible
Top |
4.23% |
28.59% |
4.19% |
32.25% |
2.73% |
35.23% |
3.72% |
32.03% |
convertibles
only |
|
C64 |
Air Conditioning
|
4.00% |
4.55% |
4.61% |
5.12% |
4.58% |
4.76% |
1965:
500s and Monzas only |
|
D10 |
Rear Door
Armrests |
0.10% |
1.28% |
0.18% |
2.15% |
n/a |
0.14% |
1.72% |
500 sedans only |
|
*** |
Two-Tone Paint |
0.78% |
3.35% |
0.69% |
3.37% |
0.65% |
2.91% |
0.71% |
3.21% |
sedans
only |
|
|
|
Rear Suspension -
UPC 4 (G50 - H99) |
|
G95 |
3.55:1 Rear Axle |
0.84% |
0.96% |
0.79% |
0.88% |
0.87% |
0.83% |
0.90% |
500s
and Monzas only (standard on Corsas) |
|
|
|
Engine - UPC 6
(K01 - L99) |
|
K46 |
Heavy Duty Air
Pre-cleaner |
0.25% |
0.29% |
0.12% |
0.14% |
n/a |
0.19% |
0.21% |
500s
and Monzas only |
|
L62 |
110 HP Engine |
59.74% |
68.01% |
60.90% |
67.74% |
70.15% |
63.60% |
68.63% |
500s
and Monzas only |
|
L63
(COPO 9551) |
140 HP Engine |
7.76% |
8.83% |
7.23% |
8.04% |
1.02% |
5.34% |
5.97% |
500s
and Monzas only (standard
on Corsas) |
|
L87 |
180 HP Engine |
3.06% |
25.16% |
1.88% |
18.63% |
n/a |
2.47% |
21.89% |
Corsas
only |
|
|
|
Transmission -
UPC 7 (M01 - M99) |
|
M35 |
PowerGlide
Automatic Transmission |
53.09% |
60.44% |
57.23% |
63.65% |
67.94% |
59.42% |
64.01% |
500s
and Monzas only |
|
|
|
Wheels & Tires -
UPC 10 (P01 - T49) |
|
P01 |
Wheel Covers |
3.70% |
16.05% |
5.16% |
16.30% |
8.90% |
19.85% |
5.92% |
17.40% |
500s only |
|
|
|
Electrical &
Instrument - UPC 12 (T60 - U99) |
|
U27 |
Glove Compartment
Light |
n/a |
n/a |
2.24% |
5.00% |
2.24% |
5.00% |
500s only |
|
U29 |
Courtesy
Lights |
n/a |
6.87% |
7.45% |
6.87% |
7.45% |
coupes
and sedans only (standard on convertibles) |
Comparing the three-year average percentages, there
are striking increases for some options, notably:
 | Rear Door Armrests (D10): 12x |
| Power Convertible Top (C06): 9x |
| 180 HP Engine (L87): 9x |
| Two-Tone Paint: 4.5x |
| Folding Rear Seat (A67): 3x |
| Wheel Covers (P01): 3x |
For a few options, the increase is roughly 2x. For
the remainder, the increase is just a few percent.
The effect that this has on the options installed on
greater than 10% of cars is to add three items to Table 7 (C06, L87, P01) and to move
two more up in the table (L62, M35). These five options are highlighted in
green below.
Table 7: Options that were installed on more
than 10% of cars (revised)
|
RPO |
Option Description |
Avg. % |
|
P53 |
6.50x13 White Wall Rayon Tires |
73.70% |
|
L62 |
110
HP Engine |
68.63% |
|
Z01 |
Convenience Group Type "A" |
66.36% |
|
P54 |
7.00x13 White Wall Rayon Tires |
64.03% |
|
M35 |
PowerGlide Automatic Transmission |
64.01% |
|
U63 |
AM
Pushbutton Radio |
58.14% |
|
B70 |
Padded Dash |
48.46% |
|
A02 |
Tinted Glass – Windshield Only |
38.11% |
|
A49 |
Custom Deluxe Front Seat Belts with Retractors |
33.10% |
|
C06 |
Power
Convertible Top |
32.03% |
|
P19 |
Spare
Tire Lock |
31.08% |
|
M20 |
4
Speed Manual Transmission |
25.00% |
|
L87 |
180 HP
Engine |
21.89% |
|
A39 |
Custom Deluxe Front & Rear Seat Belts with Front Retractors |
21.63% |
|
P01 |
Wheel
Covers |
17.40% |
|
U73 |
Rear
Antenna |
14.12% |
|
B93 |
Door
Edge Guards |
13.04% |
|
U60 |
AM
Manual Radio |
11.17% |
|
V74 |
Hazard Switch and Flashers |
| |
