USA vs USA — 1976 vs 1963
| Regal Grand National | Wildcat 455 Stage 1 | |
|---|---|---|
| Horsepower | 245 hp | 370 hp |
| Torque | 355 lb-ft | 510 lb-ft |
| Engine Size | 3,791 cc | 7,457 cc |
| 0-60 mph | 5.5 sec | 6.5 sec |
| Top Speed | 125 mph | 125 mph |
| ¼ Mile | 13.9 sec | 14.5 sec |
| Weight | 3,476 lbs | 4,200 lbs |
| Wheelbase | 2,743 mm | 3,124 mm |
| Length | 5,067 mm | 5,562 mm |
| Units Produced | 20,193 | — |
| Original MSRP | $16,608 | $3,900 |
| Value (Excellent) | $75,000 | $60,000 |
| Collectibility | 9/10 | 7/10 |
| Rarity | 7/10 | 7/10 |
It's a closely fought contest. The 1976 Buick Regal Grand National brings quicker acceleration, lighter weight, stronger collectibility to the table, and the 1963 Buick Wildcat 455 Stage 1 answers with more power, better value. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
Buick has long offered a diverse lineup, and comparing the 1976 Buick Regal Grand National with the 1963 Buick Wildcat 455 Stage 1 highlights the breadth of the marque's engineering philosophy. The 1963 Buick Wildcat 455 Stage 1 holds a clear advantage in raw power with 370 hp compared to 245 hp, a 125-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Buick Regal uses a V6 Turbocharged displacing 3,791 cc, while the Buick Wildcat relies on a V8 OHV with 7,457 cc. In the sprint to 60 mph, the 1976 Buick Regal Grand National edges ahead at 5.5 seconds versus 6.5 seconds. The Buick Regal carries a weight advantage, tipping the scales 724 lbs lighter. From a collectibility standpoint, the 1976 Buick Regal Grand National rates higher among enthusiasts and auction houses.