USA vs USA — 1984 vs 1970
| Grand National GNX | GSX Stage 1 | |
|---|---|---|
| Horsepower | 276 hp | 360 hp |
| Torque | 360 lb-ft | 510 lb-ft |
| Engine Size | 3,791 cc | 7,456 cc |
| 0-60 mph | 4.7 sec | 5.5 sec |
| Top Speed | 125 mph | 125 mph |
| ¼ Mile | 13.4 sec | 13.4 sec |
| Weight | 3,500 lbs | — |
| Wheelbase | 2,743 mm | 2,845 mm |
| Length | 5,059 mm | 5,156 mm |
| Units Produced | 547 | 678 |
| Original MSRP | $29,290 | — |
| Value (Excellent) | $300,000 | $200,000 |
| Collectibility | 10/10 | 5/10 |
| Rarity | 9/10 | 8/10 |
This matchup is remarkably close. The 1984 Buick Grand National GNX offers quicker acceleration, stronger collectibility, while the 1970 Buick GSX Stage 1 counters with more power, better value. Neither holds a decisive advantage, making this a true enthusiast's dilemma. Your choice ultimately depends on which driving philosophy resonates more with you.
Within the Buick stable, the 1984 Buick Grand National GNX and 1970 Buick GSX Stage 1 represent different approaches to performance and purpose. Both carry the Buick badge, yet each carves out its own distinct identity. The 1970 Buick GSX Stage 1 holds a clear advantage in raw power with 360 hp compared to 276 hp, a 84-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Buick Grand National uses a V6 OHV Turbocharged (Buick 3.8L) displacing 3,791 cc, while the Buick GSX relies on a V8 OHV 16V with 7,456 cc. In the sprint to 60 mph, the 1984 Buick Grand National GNX edges ahead at 4.7 seconds versus 5.5 seconds. From a collectibility standpoint, the 1984 Buick Grand National GNX rates higher among enthusiasts and auction houses.