Production Numbers:

1973

 Century
 Coupe - 56,154
 Sedan - 38,202
 Wagon - 7,760

 Luxus
 Coupe - 71,712
 Sedan - 22,438
 Wagon - 10,645

 Regal
 Coupe - 91,557


Quoted from V8Buick.com:
"99 Centurys were built with the 455 engine and without the GS package (A-6). The fifth digit in the VIN was a "T". These cars were only available with a TH400 transmission. Because these were not Gran Sports they were not included in the attached summary.

979 GS455s were built, some had a "T" and some had a "U" in the VIN. My Sloan research included several hours of looking at "T" and "U" VIN cars and as far as we know there was no difference and that is all you need to know."

Quoted from the Century GS Registry:

1973 Gran Sport Production figures

Total GS production for 1973

6637 produced

4930 350 CID

979 455CID

728 455 Stage 1



1974

 Century 350
 Coupe - 33,166
 Sedan - 22,856
 Wagon - 4,860

 Luxus
 Coupe - 44,930
 Sedan - 11,159
 Wagon - 6,791

 Regal
 Coupe - 57,512
 Sedan - 9,333

1975

 Century
 Coupe - 39,556
 Sedan - 22,075
 Wagon - 4,416

 Century Custom
 Coupe - 32,966
 Sedan - 9,995
 Wagon - 6,791

 Regal
 Coupe - 56,646
 Sedan - 10,726

1976

 Century
 Coupe - 59,448
 Sedan - 33,632

 Century Custom
 Coupe - 34,036
 Sedan - 19,728
 Wagon - 16,625

 Regal
 Coupe - 124,498
 Sedan - 17,118

1977

 Century
 Coupe - 52,864
 Sedan - 29,065

 Century Custom
 Coupe - 20,834
 Sedan - 13,645
 Wagon - 19,282

 Regal
 Coupe - 174,560
 Sedan - 17,946

Looking for any information on Free Spirit and GS production numbers!