Calais: two-door hardtop coupe and four-door hardtop sedan
DeVille: two-door coupe and four-door sedan
Fleetwood Brougham: four-door sedan
Fleetwood Seventy-Five: four-door sedan, four-door limousine, and commercial chassis used in hearses and ambulances, etc.
Fleetwood Eldorado: two-door hardtop coupe and two-door convertible
Seville: four-door sedan
1975 Cadillac Coupe deville
I. D. DATA
The serial number system and locations were unchanged.
The sixth symbol changed to a “5” for 1975.
Calais Coupes were numbered 6C47S5?100001 up
Calais Sedans were numbered 6C49S5?100001 up
DeVille Coupes were numbered 6D47S5?100001 up
DeVille Sedans were numbered 6D49S5?100001 up
Eldorado Coupes were numbered 6L47S59?100001 up
Eldorado Convertibles were numbered 6L47S59?100001 up
Broughams were numbered 6B69S5?100001 up
Seventy-Fives were numbered 6F3S5?100001 up
Sevilles were numbered 6S69R6Q?500001 up.
Sevilles sold in 1975 were considered 1976 models and all production of this model was quartered in the Detroit assembly plant, Code “Q”). Engine code “R” was now applied to the new 350 cubic inch Seville V-8.