"Petty Blue" was a specific color of blue whose formula was locked in Petty Enterprises safe. It was NOT used on any production Chrysler product of that era--period. ONLY on Petty Enterprises race cars.
As for factory-available colors, I believe that all factory B-body colors were available on the Superbirds. Only thing was that they ALL had black vinyl roofs, as I recall. You can go to the Winged Warriors website for possible verification of that fact and the color issue too.
The Superbird was based on the normal Plymouth B-body platform, with the wing items (AND related inner supports under the quarter panels) and the front snout were basically bolt-on items. The front fenders were modified from production stock, though, other than the top "vents" on them (really for tire clearance with the lowered ride height they ran on the track).
One thing you could NOT get on a Superbird was factory a/c. IF you see "a Superbird" with factory a/c option code on the data plate, it's not a real one. Some people did put add-on a/c on the 'Birds and Daytonas, but they didn't come from the factory (or the conversion company that did the Daytonas--Superbirds were done "in house") that way. Something about not enough air flow through the small front grille or something like that?
If you want to see a full gamut of Superbirds, attending the Mopar Nationals (the 2nd weekend in August, every year) will "get you there". Factory correct, not over-restored as we might like to see them, but completely factory-correct in all respects for the Concours level judging they do there.
The Winged Warriors usually had a yearly meet too, I believe.
I have seen the Build Instructions for the Superbirds. I was also involved in a complete "bare body to completion" restoration of a friend's Superbird in 1999-2001. He took it to Mopar Nats (at IRP that year) and it won First Place in its class, getting a victory lap down the race track and back. THAT WAS NEAT!
I always liked the Daytonas better, but the 'Birds were a "cleaner build". The nosecone and such was hung inside the car as it went through the paint booth, so it got the same paint as the rest of the car.
The reason that all Superbirds had vinyl roofs was to cover up the additional body work for the rear window "plug" for the different shape it has compared to stock B-body Plymouths. Some of that body work was pretty rough, as I recall when the cars were still new and running around like regular cars.
So, take one B-body Plymough 2-door hardtop, add one aerodynamic nosecone to the front, some modified front fenders, the wing and inner supports to the rear quarter panels and you haven't really raised the build labor for the vehicle over what it would be otherwise, nor probably the cost. Where any additional cost might have come in would be in the additional items related to the rear window (different glass plus the other items to fit it to the car). They probably had to have a separate sub-assembly line to make that happen. A few unique vinyl top mouldings and probably a little more vinyl top fabric would round things out for additional costs and such.
Many people were somewhat put-off by the additional length of the front end. In the "gas crunch" days, some unsold Superbirds had normal front ends put on them by dealers just to move the cars off the lots. They were definitely a novelty item . . . with big motors that people suspected would guzzle fuel more than they wanted them too back then.
In reality, the Chrysler Engineering papers for the cars noted they had the lowest coefficient of drag of any car built for regular production at that time, and rival many vehicles of modern times too. The "rub" came with the 440 and 426 HEMI motors and performance rear axle ratios, plus basic weight that approached 4000lbs.
There is an excellent book on the Winged Cars, which has been out for several years. It talks about the testing they did at the proving grounds' oval track. How that a regular NASCAR car on that body had a shockwave that nearly blew down the small timing shack, but with the nosecone and wings, the 'Birds were both stable, much faster (over
200mph), drove with much less "drama", and blasted past the timing shack with little more than a breeze. All of that unusual body work "worked" and worked well.
As for the Daytonas, they were assembled at the assembly plant as a normal car, but with special instructions to be shipped to the contractor to do the conversion to a Daytona. Therefore, for those cars to be restored accurately, they should have about three layers of primer, overspray, and undercoating on the undercarriage. The paint on the nosecone would usually be acrylic lacquer rather than acrylic enamel as was on the rest of the car (from the factory). If those extra details are not there (reproduced accurately), it's a points deduction in the judging.
I suspect that if anybody lost money on Superbirds, it was the dealer who had one on the lot (after the feeding frenzy had diminshed). The factory had their costs covered in the price of the car, so they didn't lose anything. With the additional items, they might not have made as much on the Superbird as a normal B-body Plymouth, but they should have still covered their costs to make it happen.
I suspect the costs of research and development of the aerodynamic package would have been costed-out to the NASCAR racing budget as that's what drove that whole situation back then.
So, check out the Winged Warriors website, the Wing Car Book, and such.
Now, what we need to do is to get the youngsters who add those "wings" on the back of their imports to stop calling the result "wing cars"!!!!!!!!!!!!
Enjoy!
C-BODY