| | E87 | | 1978 | | BUICK CENTURY SPECIAL | | | 4-dr sedan | | 108.1" | | LC9 196ci V6 2bbl 90hp | | | | 120 | | 400 | | 1200 | | 1600 | | 2400 | | 3600 | | |
| | E09 | | 1978 | | BUICK CENTURY SPECIAL | | | 2-dr coupe | | 108.1" | | LC9 196ci V6 2bbl 90hp | | | | 270 | | 900 | | 2700 | | 3600 | | 5400 | | 8100 | | |
| | H09 | | 1978 | | BUICK CENTURY CUSTOM | | | 4-dr sedan | | 108.1" | | LC9 196ci V6 2bbl 90hp | | | | 150 | | 500 | | 1500 | | 2000 | | 3000 | | 4500 | | |
| | H87 | | 1978 | | BUICK CENTURY CUSTOM | | | 2-dr coupe | | 108.1" | | LC9 196ci V6 2bbl 90hp | | | | 300 | | 1000 | | 3000 | | 4000 | | 6000 | | 9000 | | |
| | L09 | | 1978 | | BUICK CENTURY LIMITED | | | 4-dr sedan | | 108.1" | | LC9 196ci V6 2bbl 90hp | | | | 180 | | 600 | | 1800 | | 2400 | | 3600 | | 5400 | | |
| | L87 | | 1978 | | BUICK CENTURY LIMITED | | | 2-dr coupe | | 108.1" | | LC9 196ci V6 2bbl 90hp | | | | 330 | | 1100 | | 3300 | | 4400 | | 6600 | | 9900 | | |
| | G87 | | 1978 | | BUICK CENTURY SPORT COUPE | | | 2-dr coupe | | 108.1" | | LC9 196ci V6 2bbl 90hp | | | | 330 | | 1100 | | 3300 | | 4400 | | 6600 | | 9900 | | |
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| | E87 | | 1978 | | BUICK CENTURY SPECIAL | | | 4-dr sedan | | 108.1" | | LD5 231ci V6 2bbl 105hp | | | | 135 | | 450 | | 1350 | | 1800 | | 2700 | | 4050 | | |
| | E09 | | 1978 | | BUICK CENTURY SPECIAL | | | 2-dr coupe | | 108.1" | | LD5 231ci V6 2bbl 105hp | | | | 285 | | 950 | | 2850 | | 3800 | | 5700 | | 8550 | | |
| | E35 | | 1978 | | BUICK CENTURY SPECIAL | | | 4-dr 2s station wagon | | 108.1" | | LD5 231ci V6 2bbl 105hp | | | | 210 | | 700 | | 2100 | | 2800 | | 4200 | | 6300 | | |
| | H09 | | 1978 | | BUICK
CENTURY CUSTOM | | | 4-dr
sedan | | 108.1" | | LD5 231ci V6 2bbl 105hp | | | | 165 | | 550 | | 1650 | | 2200 | | 3300 | | 4950 | | |
| | H87 | | 1978 | | BUICK CENTURY CUSTOM | | | 2-dr coupe | | 108.1" | | LD5 231ci V6 2bbl 105hp | | | | 315 | | 1050 | | 3150 | | 4200 | | 6300 | | 9450 | | |
| | H35 | | 1978 | | BUICK CENTURY CUSTOM | | | 4-dr 2s station wagon | | 108.1" | | LD5 231ci V6 2bbl 105hp | | | | 240 | | 800 | | 2400 | | 3200 | | 4800 | | 7200 | | |
| | L09 | | 1978 | | BUICK
CENTURY LIMITED | | | 4-dr
sedan | | 108.1" | | LD5 231ci V6 2bbl 105hp | | | | 195 | | 650 | | 1950 | | 2600 | | 3900 | | 5850 | | |
| | L87 | | 1978 | | BUICK CENTURY LIMITED | | | 2-dr coupe | | 108.1" | | LD5 231ci V6 2bbl 105hp | | | | 345 | | 1150 | | 3450 | | 4600 | | 6900 | | 10350 | | |
| | G87 | | 1978 | | BUICK CENTURY SPORT COUPE | | | 2-dr coupe | | 108.1" | | LD5 231ci V6 2bbl 105hp | | | | 345 | | 1150 | | 3450 | | 4600 | | 6900 | | 10350 | | |
| | H35 | | 1978 | | BUICK CENTURY SPORT WAGON | | | 4-dr 2s station wagon | | 108.1" | | LD5 231ci V6 2bbl 105hp | | | | 270 | | 900 | | 2700 | | 3600 | | 5400 | | 8100 | | |
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| | E87 | | 1978 | | BUICK CENTURY SPECIAL | | | 4-dr sedan | | 108.1" | | LG3 305ci V8 2bbl 145hp | | | | 180 | | 600 | | 1800 | | 2400 | | 3600 | | 5400 | | |
| | E09 | | 1978 | | BUICK
CENTURY SPECIAL | | | 2-dr
coupe | | 108.1" | | LG3 305ci V8 2bbl 145hp | | | | 330 | | 1100 | | 3300 | | 4400 | | 6600 | | 9900 | | |
| | E35 | | 1978 | | BUICK CENTURY SPECIAL | | | 4-dr 2s station wagon | | 108.1" | | LG3 305ci V8 2bbl 145hp | | | | 255 | | 850 | | 2550 | | 3400 | | 5100 | | 7650 | | |
| | H09 | | 1978 | | BUICK
CENTURY CUSTOM | | | 4-dr
sedan | | 108.1" | | LG3 305ci V8 2bbl 145hp | | | | 210 | | 700 | | 2100 | | 2800 | | 4200 | | 6300 | | |
| | H87 | | 1978 | | BUICK CENTURY CUSTOM | | | 2-dr coupe | | 108.1" | | LG3 305ci V8 2bbl 145hp | | | | 360 | | 1200 | | 3600 | | 4800 | | 7200 | | 10800 | | |
| | H35 | | 1978 | | BUICK CENTURY CUSTOM | | | 4-dr 2s station wagon | | 108.1" | | LG3 305ci V8 2bbl 145hp | | | | 285 | | 950 | | 2850 | | 3800 | | 5700 | | 8550 | | |
| | L09 | | 1978 | | BUICK
CENTURY LIMITED | | | 4-dr
sedan | | 108.1" | | LG3 305ci V8 2bbl 145hp | | | | 240 | | 800 | | 2400 | | 3200 | | 4800 | | 7200 | | |
| | L87 | | 1978 | | BUICK CENTURY LIMITED | | | 2-dr coupe | | 108.1" | | LG3 305ci V8 2bbl 145hp | | | | 390 | | 1300 | | 3900 | | 5200 | | 7800 | | 11700 | | |
| | G87 | | 1978 | | BUICK CENTURY SPORT COUPE | | | 2-dr coupe | | 108.1" | | LG3 305ci V8 2bbl 145hp | | | | 390 | | 1300 | | 3900 | | 5200 | | 7800 | | 11700 | | |
| | H35 | | 1978 | | BUICK CENTURY SPORT WAGON | | | 4-dr 2s station wagon | | 108.1" | | LG3 305ci V8 2bbl 145hp | | | | 315 | | 1050 | | 3150 | | 4200 | | 6300 | | 9450 | | |
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| | E87 | | 1978 | | BUICK CENTURY SPECIAL | | | 4-dr sedan | | 108.1" | | LG4 305ci V8 4bbl 160hp | | | | 195 | | 650 | | 1950 | | 2600 | | 3900 | | 5850 | | |
| | E09 | | 1978 | | BUICK
CENTURY SPECIAL | | | 2-dr
coupe | | 108.1" | | LG4 305ci V8 4bbl 160hp | | | | 345 | | 1150 | | 3450 | | 4600 | | 6900 | | 10350 | | |
| | E35 | | 1978 | | BUICK CENTURY SPECIAL | | | 4-dr 2s station wagon | | 108.1" | | LG4 305ci V8 4bbl 160hp | | | | 270 | | 900 | | 2700 | | 3600 | | 5400 | | 8100 | | |
| | H09 | | 1978 | | BUICK
CENTURY CUSTOM | | | 4-dr
sedan | | 108.1" | | LG4 305ci V8 4bbl 160hp | | | | 225 | | 750 | | 2250 | | 3000 | | 4500 | | 6750 | | |
| | H87 | | 1978 | | BUICK CENTURY CUSTOM | | | 2-dr coupe | | 108.1" | | LG4 305ci V8 4bbl 160hp | | | | 375 | | 1250 | | 3750 | | 5000 | | 7500 | | 11250 | | |
| | H35 | | 1978 | | BUICK CENTURY CUSTOM | | | 4-dr 2s station wagon | | 108.1" | | LG4 305ci V8 4bbl 160hp | | | | 300 | | 1000 | | 3000 | | 4000 | | 6000 | | 9000 | | |
| | L09 | | 1978 | | BUICK
CENTURY LIMITED | | | 4-dr
sedan | | 108.1" | | LG4 305ci V8 4bbl 160hp | | | | 255 | | 850 | | 2550 | | 3400 | | 5100 | | 7650 | | |
| | L87 | | 1978 | | BUICK CENTURY LIMITED | | | 2-dr coupe | | 108.1" | | LG4 305ci V8 4bbl 160hp | | | | 405 | | 1350 | | 4050 | | 5400 | | 8100 | | 12150 | | |
| | G87 | | 1978 | | BUICK CENTURY SPORT COUPE | | | 2-dr coupe | | 108.1" | | LG4 305ci V8 4bbl 160hp | | | | 405 | | 1350 | | 4050 | | 5400 | | 8100 | | 12150 | | |
| | H35 | | 1978 | | BUICK CENTURY SPORT WAGON | | | 4-dr 2s station wagon | | 108.1" | | LG4 305ci V8 4bbl 160hp | | | | 330 | | 1100 | | 3300 | | 4400 | | 6600 | | 9900 | | |
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| | E35 | | 1978 | | BUICK CENTURY SPECIAL | | | 4-dr 2s station wagon | | 108.1" | | LM1
350ci V8 4bbl 170hp | | | | 360 | | 1200 | | 3600 | | 4800 | | 7200 | | 10800 | | |
| | H35 | | 1978 | | BUICK CENTURY CUSTOM | | | 4-dr 2s station wagon | | 108.1" | | LM1 350ci V8 4bbl 170hp | | | | 390 | | 1300 | | 3900 | | 5200 | | 7800 | | 11700 | | |
| | H35 | | 1978 | | BUICK CENTURY SPORT WAGON | | | 4-dr 2s station wagon | | 108.1" | | LM1 350ci V8 4bbl 170hp | | | | 420 | | 1400 | | 4200 | | 5600 | | 8400 | | 12600 | | |
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| | | | | | PRODUCTION TOTALS
FOR SELECT MODELS: | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | 1978 BUICK CENTURY SPECIAL 4-dr sedan | | | | | | | | | 12533 | | | | | | | | | | | | | | |
| | | | | | 1978 BUICK CENTURY SPECIAL 2-dr coupe | | | | | | | | | 10818 | | | | | | | | | | | | | | |
| | | | | | 1978 BUICK CENTURY CUSTOM 4-dr sedan | | | | | | | | | 18361 | | | | | | | | | | | | | | |
| | | | | | 1978 BUICK CENTURY CUSTOM 2-dr coupe | | | | | | | | | 12434 | | | | | | | | | | | | | | |
| | | | | | 1978 BUICK CENTURY 4-dr station wagon | | | | | | | | | 9586 | | | | | | | | | | | | | | |
| | | | | | 1978 BUICK CENTURY CUSTOM 4-dr station wagon | | | | | | | | | 24014 | | | | | | | | | | | | | | |
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| | | | | | ADDS AND DEDUCTS: | | | | | | | | | | | S | | 2 | | 4 | | 6 | | 8 | | 10 | | 1978 |
| | | | | | ADD FOR 4-SPEED MANUAL TRANS. | | | | | | | | | | | 30 | | 100 | | 300 | | 400 | | 600 | | 900 | | |
| | | | | | ADD FOR BUCKET SEATS | | | | | | | | | | | 30 | | 100 | | 300 | | 400 | | 600 | | 900 | | |
| | | | | | ADD FOR FACTORY STYLED WHEELS | | | (Std. CENTURY SPORT) | | | | | | | | 45 | | 150 | | 450 | | 600 | | 900 | | 1350 | | |
| | | | | | ADD FOR FACTORY FINNED OR WIRE WHEEL COVERS | | | | | | | | | | | 30 | | 100 | | 300 | | 400 | | 600 | | 900 | | |
| | | | | | ADD FOR FACTORY T-TOPS OR SUNROOF | | | | | | | | | | | 45 | | 150 | | 450 | | 600 | | 900 | | 1350 | | |
| | | | | | ADD FOR FACTORY TWO-TONE PAINT | | | (Std. CENTURY SPORT) | | | | | | | | 15 | | 50 | | 150 | | 200 | | 300 | | 450 | | |
| | | | | | ADD FOR FACTORY VINYL ROOF | | | | | | | | | | | 30 | | 100 | | 300 | | 400 | | 600 | | 900 | | |
| | | | | | ADD FOR LUGGAGE RACK (station wagon) | | | | | | | | | | | 15 | | 50 | | 150 | | 200 | | 300 | | 450 | | |
| | | | | | ADD FOR POWER SEATS | | | | | | | | | | | 15 | | 50 | | 150 | | 200 | | 300 | | 450 | | |
| | | | | | ADD FOR POWER WINDOWS | | | | | | | | | | | 15 | | 50 | | 150 | | 200 | | 300 | | 450 | | |
| | | | | | ADD FOR THIRD SEAT STATION WAGON | | | | | | | | | | | 15 | | 50 | | 150 | | 200 | | 300 | | 450 | | |
| | | | | | ADD FOR WOOD GRAIN TRIM STATION WAGONS | | | | | | | | | | | 15 | | 50 | | 150 | | 200 | | 300 | | 450 | | |
| | | | | | DEDUCT FOR NON-FACTORY CUSTOM WHEELS | | | | | | | | | | | 45 | | 150 | | 450 | | 600 | | 900 | | 1350 | | |
| | | | | | DEDUCT WITHOUT FACTORY AIR CONDITIONING | | | | | | | | | | | 45 | | 150 | | 450 | | 600 | | 900 | | 1350 | | |
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