Jut caught this thread.....its highly unlikely anyone knows for sure on the break down on number of T Top GNs that were built for any given year. When I was writing my first book the 400 page one I was in direct contact with a source at Buick that had a lot of the production numbers available but on many options including T Tops it was confusing because Buick did not keep VINs separate hard to explain the process but it just didn't happen. The Syclones for example all have their specific VIN number and from that you can tell exactly what number your Syclone is in production.
In the Turbo Buick world our cars were mixed with all the other V6 and V8 Regals and although many of you may not have ever seen a regular V6 or V8 Regal with T Tops they do exist.
Since T-Tops meant more money for the dealerships when they were new....obviousily they ordered a lot of them and pushed them to make more $$$$ same token most buyers did not realize the problems that accompany T-Top Regals when you have poor body fit and what happens when it rains!
Its like the Monte Carlo SS models you would almost swear 80% of them must be burgundy exterior with burgundy guts as most you see have that color combo.
As to how many of any give year remain on the road insurance companies have a formula for that based on the year original production and what percentage would still be on the road today. The numbers are not that great when compared to other muscle cars.
Example GTOs a car I am just as well versed on...in 1966 alone they made 80,000 of them.....They were made in 13 different assembly plants around the USA. Our cars all where made in Flint with final assembly in Pontiac Michigan. That was just one year production. Far greater than all the Turbo Regals made between 1984-1987. You have a car that has a high appeal and whose numbers diminish as each year passes.
denniskirban@yahoo.com
At best one can only estimate a percentage that received CC1 option T-Tops.
On a side note: It is ashame for example as each year passes no one can figure out what was the very first produced GN for any given year.