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Production numbers for specific combinations

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Old Sep 23, 2008 | 05:38 PM
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Default Production numbers for specific combinations

I was browsing Corvette Action Centre web page for production numbers. Now I know that there were 20,4789 92's built, of which 5,875 were verts. Of the total, there were 4,101 RPO10 (white exterior), 1,892 RPO103 (white leather) and 1,461 white tops. However, how can I find out the production numbers for a triple white 92?
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Old Sep 23, 2008 | 06:38 PM
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GM didn't keep accurate figures for specific car combinations. Abut all you could really do is to compute some percentages based on the numbers.

I would think that the total number of triple white vert's would be very low given that the percentage of white interiors was less than 10% of the total production run. Even though 'verts were more than 20% of production, it would be hard to come up with an accurate figure.
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Old Sep 23, 2008 | 11:57 PM
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Thanks. Now if I could only find my old college math textbook that had the chapter on calculating probabilities. On second thought, I'll just have a and invent a number.
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Old Sep 24, 2008 | 12:45 AM
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According to my 2004 Corvette Black Book, you got your tops and interiors reversed. I see 1491 white interiors and 1892 white tops.
My guess is no more than 400 ( approx 25-30%) of those white interiors went into 'verts and of those maybe half were white tops. And then maybe half of those were white cars. So you're looking at possibly 100 trip whites. Just a guess.

Last edited by ZR-71; Sep 24, 2008 at 12:51 AM.
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Old Sep 24, 2008 | 04:35 PM
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Cool. Thanks. I'd heard it was an uncommon combination.
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Old Sep 25, 2008 | 09:19 PM
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I also have looked into this subject with no luck on exact numbers.
I have talked with Gordon Killebrew and Dave McClellen on this, and they seemed to believe that white exterior was the most popular color to have white interior.
No matter what, all the white interiors are low production.
But unfortunately as stated above, we do not have these exact numbers.
Rumors had it, the Museum was going to figure these out since they have all the build sheets.
Hopefully one day we will find out...

Rik

PS. Isn't that white interior fun to keep clean...

Last edited by Riks40th; Sep 25, 2008 at 09:21 PM.
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Old Sep 25, 2008 | 11:20 PM
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Well based on statistics:
-30%=verts
-20%=wh ext
-10%=wh int
-7%=wh top
Out of ~20,500 total that year it is "likely" that <100 would have that particular combo.
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Old Sep 26, 2008 | 08:45 AM
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Originally Posted by 65Z01
Well based on statistics:
-30%=verts
-20%=wh ext
-10%=wh int
-7%=wh top
Out of ~20,500 total that year it is "likely" that <100 would have that particular combo.
These types of calculation don't work though. There is a much greater chance of a white exterior buyer choosing a white top than the average buyer just like there is a much greater chance of a black exterior buyer buying a black top. Look at the 95 ZR-1s (where we do have detailed exterior/interior combo information). The black interiors account for 55% of the total interiors, but 83% of cars with black exteriors. Same for red which accounts for 14% of all ZR-1 interiors but 30% of interiors of red cars. While I realize you number might be correct (given that it seems fairly conservative), the bottom line is it is impossible to tell without the data.
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Old Sep 26, 2008 | 09:17 AM
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Originally Posted by bb62
These types of calculation don't work though. There is a much greater chance of a white exterior buyer choosing a white top than the average buyer just like there is a much greater chance of a black exterior buyer buying a black top. Look at the 95 ZR-1s (where we do have detailed exterior/interior combo information). The black interiors account for 55% of the total interiors, but 83% of cars with black exteriors. Same for red which accounts for 14% of all ZR-1 interiors but 30% of interiors of red cars. While I realize you number might be correct (given that it seems fairly conservative), the bottom line is it is impossible to tell without the data.

You are correct, that method to calculate, called "extrapolation", is merely a statistical means to determine a value. By definition, it means to in infer or estimate by extending or projecting known information.

Likewise, in mathematics, to estimate (a value of a variable outside a known range) from values within a known range by assuming that the estimated value follows logically from the known values.

It is the best we have to determine the production number of our Corvettes.
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Old Sep 26, 2008 | 11:24 AM
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No wonder I didn't continue with a Math career!

Now, if I include the FX3, automatic, and sport seats into the mix, and have a brainiac write an algorithm, maybe I'll find out that it's one of kind and I can get $100K for it on EBay
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Old Sep 26, 2008 | 11:47 PM
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Originally Posted by 92ragtop
No wonder I didn't continue with a Math career!

Now, if I include the FX3, automatic, and sport seats into the mix, and have a brainiac write an algorithm, maybe I'll find out that it's one of kind and I can get $100K for it on EBay
You really don't need a brainiac, ...your Corvette is actually one of one in its simplest tersm, it is the only model with that particular VIN.
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Old Sep 27, 2008 | 05:01 PM
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Now, if I include the FX3, automatic, and sport seats into the mix, and
If you want to do the math, just calc. the % of Vettes with each option, multiply each with the above %s and then multiply by the total number of Vettes that year.

Go ahead and have "fun with math"...
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