New or Significantly Altered Models
- 1983 Buick Skyhawk wagon
Mostly Unchanged
- 1983 Buick Century
- 1983 Buick Century coupe
- 1983 Buick Electra
- 1983 Buick Electra Estate Wagon
- 1983 Buick Electra sedan
- 1983 Buick LeSabre
- 1983 Buick LeSabre Estate Wagon
- 1983 Buick LeSabre sedan
- 1983 Buick Regal
- 1983 Buick Regal sedan
- 1983 Buick Regal wagon
- 1983 Buick Riviera
- 1983 Buick Riviera convertible
- 1983 Buick Skyhawk
- 1983 Buick Skyhawk coupe
- 1983 Buick Skylark
- 1983 Buick Skylark sedan