USA vs USA — 1961 vs 1976
| Skylark GS 400 | Regal Grand National | |
|---|---|---|
| Horsepower | 340 hp | 245 hp |
| Torque | 430 lb-ft | 355 lb-ft |
| Engine Size | 6,555 cc | 3,791 cc |
| 0-60 mph | 6.8 sec | 5.5 sec |
| Top Speed | 121 mph | 125 mph |
| ¼ Mile | 14.8 sec | 13.9 sec |
| Weight | 3,550 lbs | 3,476 lbs |
| Wheelbase | 2,946 mm | 2,743 mm |
| Length | 5,156 mm | 5,067 mm |
| Units Produced | — | 20,193 |
| Original MSRP | $3,019 | $16,608 |
| Value (Excellent) | $55,000 | $75,000 |
| Collectibility | 7/10 | 9/10 |
| Rarity | 6/10 | 7/10 |
The 1976 Buick Regal Grand National emerges ahead in most objective measures, offering quicker acceleration, higher top speed, stronger collectibility. The 1961 Buick Skylark GS 400 counters with more power, but the numbers favor its rival. Still, both are remarkable machines, and the final choice often comes down to which driving experience speaks to you.
Within the Buick stable, the 1961 Buick Skylark GS 400 and 1976 Buick Regal Grand National represent different approaches to performance and purpose. Both carry the Buick badge, yet each carves out its own distinct identity. The 1961 Buick Skylark GS 400 holds a clear advantage in raw power with 340 hp compared to 245 hp, a 95-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Buick Skylark uses a V8 OHV displacing 6,555 cc, while the Buick Regal relies on a V6 Turbocharged with 3,791 cc. In the sprint to 60 mph, the 1976 Buick Regal Grand National edges ahead at 5.5 seconds versus 6.8 seconds. From a collectibility standpoint, the 1976 Buick Regal Grand National rates higher among enthusiasts and auction houses.