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Old 12-18-2014, 01:15 AM
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squidtone squidtone is offline
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Default 1967 GTO exterior color distribution calculation

Hello all,
A couple weeks ago someone posted about how many Plum Mist GTO's were made. For years I also wondered how many Linden Green GTO's were made. This kind of inquiry is made often here on PY; not only for exterior colors, but for all sorts of other options and combinations.
As most of us know this information has never been parsed out of the records. PHS probably has most of the raw data, but of course it would be a huge job to tabulate all the colors and options, especially since there were 81,000 GTO's, and then all the other Pontiacs too.

So, a few years ago I started to do my own data mining. As some of you might guess, most of the data comes from online sales and auctions. Basically I was interested in the trim tag info. I gathered the body and roof color (whether vinyl or paint) and interior trim color.

I have been able to categorize 317 GTO's according to color. That is a sample size of about 0.4% of total GTO production for 1967. Note that I only gathered GTO data, no Tempest or LeMans data. I am no statistician, but I think the information I got was sufficiently randomized considering location, surviving cars, etc.
I put this information into a spreadsheet and calculated the breakdown of colors. I am using Open Office, and I'm not used to it and I had a hard time putting it into a decent format. (I don't have excel, which I am more used to)
Just to refresh: The trim tags (or PHS billing card) had a two digit code for body/top color, and a three digit code for interior color. I'm just posting here on exterior colors.

Of note on the exterior colors: I recorded several special color cars; three tiger golds and one sunfire yellow.
There were also a few cars that had two tone paint. (not resolved in this post)
I'm sure with the small sample size, there is some statistical "noise", but still, it's intersting that Starlight Black, Fathom Blue and Plum Mist are just about equally "rare".
Interestingly, what I found significantly more "rare" is a convertible with a color top (not black or white) (again, not shown here in this post)

Here's the list showing most popular down to least popular. I can't format it nicely, but you can see what's what. I'll see if I can post the bar chart later....

1967 GTO Exterior Color distribution
Colors / Percent
Tyrol Blue 16.1%
Signet Gold 15.5%
Regimental Red 14.2%
Cameo Ivory 6.9%
Burgundy 6.6%
Mariner Turquoise 6.3%
Silverglaze 6.3%
Montego Cream 5.4%
Montreaux Blue 4.7%
Linden Green 4.1%
Gulf Turquoise 3.5%
Champagne 3.2%
Starlight Black 2.2%
Fathom Blue 1.9%
Plum Mist 1.9%
Tiger gold 0.9%
Sunfire Yellow 0.3%



Sampled quantity: 317 / 100.00%

Total 1967 GTO production 81722

Sample size of total production: 0.4%


I just thought this would be interesting. I fee pretty confident it's probably pretty close to actual percentages. As time goes on, if I keep gathering info, I'll update if it changes much.
Any statistics buffs care to chime in?

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